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Strange Issues moving from SBS 2000 to Server 2003 R2

 
 
Bob Randall
Guest
Posts: n/a

 
      09-13-2007, 03:10 AM
I have a strange issue that I need help with – here are the details:

I recently moved a small business office off of Small Business Server 2000
which was running as a DC, DNS Server, DHCP, and IS 2000. This office has 10
users, so I went the fully manual way. I took a new Windows 2003 R2 server,
built a new DC, and added DNS and DHCP services to it. I changed the Domain
name when I did it as well, because the person who created the initial SBS
2000 domain named it the
same as their registered domain name (which caused issues with the
externally hosted web site,etc). The SBS 2000 domain name was
special-tees.com, and I built the new domain as home.special-tees.com. I
also switched the IP addressing scheme from a 192.168.0.0 group on SBS 2000
to a 10.0.0.0 group on the new domain.

While both domains were running at the same time I went to each workstation,
removed them from the SBS 2000 domain, removed the ISA 2000 Firewall client,
removed them from the old domain and put them in a Workgroup, rebooted,
joined the new domain, renewed their IP addresses with DHCP on the new
Windows 2003 R2 server (10.0.0.0), and configured the workstations Apps, etc
….. I kept both domains running at the same time because I wanted to make
sure I properly removed each workstation for the old domain so no traces of
the old domain would be left behind. Since they are completely different IP
ranges, they were never using the same default gateway address. I did that
for all of the workstations and they are all communicating fine with one
another. I then demoted the old SBS 2000
server and removed the AD, DNS, and DHCP roles that it had.

Here is the issue – they are having intermittent internet connectivity
issues. If I unplug the two Ethernet cables from the ISA 2000 server (which
was acting as their Internet proxy before we migrated to the new Domain),
they have an intermittent internet connection. Sometimes it is really slow,
sometimes it if fine, sometimes they have no connection at all. If there is
no connection I can go to the ISA server, plug the cables back in, and the
Internet connection is back right away at full speed. If I leave it plugged
in, the same thing happens – the internet access degrades and becomes
intermittent. If I unplug them the internet connection comes back immediately
– then the same thing happens again. What is going on? There are two
different IP addressing schemes, none of the systems are pointing to the old
gateway AT ALL on the ISA 2000 server, but for some reason the clients are
occasionally trying to get to the internet via the old ISA server! Am I
missing something here? I even cleared the DNS cache from the workstations
and nothing …

Anyone have any ideas??

Bob

 
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Meinolf Weber
Guest
Posts: n/a

 
      09-13-2007, 11:14 AM
Hello Bob,

Just to clarify:

- one new 2003 server,installed as DC DNS DHCP, all clients moved to new
domain

- will you still use the ISA or work without the ISA?

- please post an ipconfig /all from DNS server and one client

- how are the options for DHCP configured

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.

> I have a strange issue that I need help with - here are the details:
>
> I recently moved a small business office off of Small Business Server
> 2000 which was running as a DC, DNS Server, DHCP, and IS 2000. This
> office has 10 users, so I went the fully manual way. I took a new
> Windows 2003 R2 server, built a new DC, and added DNS and DHCP
> services to it. I changed the Domain name when I did it as well,
> because the person who created the initial SBS 2000 domain named it
> the same as their registered domain name (which caused issues with the
> externally hosted web site,etc). The SBS 2000 domain name was
> special-tees.com, and I built the new domain as home.special-tees.com.
> I also switched the IP addressing scheme from a 192.168.0.0 group on
> SBS 2000 to a 10.0.0.0 group on the new domain.
>
> While both domains were running at the same time I went to each
> workstation, removed them from the SBS 2000 domain, removed the ISA
> 2000 Firewall client, removed them from the old domain and put them in
> a Workgroup, rebooted, joined the new domain, renewed their IP
> addresses with DHCP on the new Windows 2003 R2 server (10.0.0.0), and
> configured the workstations Apps, etc ... I kept both domains running
> at the same time because I wanted to make sure I properly removed each
> workstation for the old domain so no traces of the old domain would be
> left behind. Since they are completely different IP ranges, they were
> never using the same default gateway address. I did that for all of
> the workstations and they are all communicating fine with one another.
> I then demoted the old SBS 2000 server and removed the AD, DNS, and
> DHCP roles that it had.
>
> Here is the issue - they are having intermittent internet connectivity
> issues. If I unplug the two Ethernet cables from the ISA 2000 server
> (which was acting as their Internet proxy before we migrated to the
> new Domain), they have an intermittent internet connection. Sometimes
> it is really slow, sometimes it if fine, sometimes they have no
> connection at all. If there is no connection I can go to the ISA
> server, plug the cables back in, and the Internet connection is back
> right away at full speed. If I leave it plugged in, the same thing
> happens - the internet access degrades and becomes intermittent. If I
> unplug them the internet connection comes back immediately - then the
> same thing happens again. What is going on? There are two different IP
> addressing schemes, none of the systems are pointing to the old
> gateway AT ALL on the ISA 2000 server, but for some reason the clients
> are occasionally trying to get to the internet via the old ISA server!
> Am I missing something here? I even cleared the DNS cache from the
> workstations and nothing .
>
> Anyone have any ideas??
>
> Bob
>



 
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Bob Randall
Guest
Posts: n/a

 
      09-13-2007, 07:20 PM
Thank you for your response - here are my answers to your questions:

- one new 2003 server,installed as DC DNS DHCP, all clients moved to new
domain

That is correct. All clients were removed from the old SBS 2000 domain and
added to the 2003 R2 domain and those are the services running.

- will you still use the ISA or work without the ISA?

We are trying to get away from ISA, but if i unplug the server now it
affects the Internet access for everyone, even though they are on a 10.0.0.0
network (the ISA was 192.168.0.0). Right now we are going direct to our
Internet router, bypassing ISA. ISA is still plugged directly into the same
switch though, but it is addressed differently.

- please post an ipconfig /all from DNS server and one client

XP Workstation
Windows IP Configuration

Host Name . . . . . . . . . . . . : Ed
Primary Dns Suffix . . . . . . . : rockville.special-tees.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : rockville.special-tees.com
rockville.special-tees.com
special-tees.com

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : rockville.special-tees.com
Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network
Connecti
on
Physical Address. . . . . . . . . : 00-07-E9-6E-4C-DE
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 10.1.10.102
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.1.10.1
DHCP Server . . . . . . . . . . . : 10.1.10.2
DNS Servers . . . . . . . . . . . : 10.1.10.2
Primary WINS Server . . . . . . . : 10.1.10.2
Lease Obtained. . . . . . . . . . : Thursday, September 13, 2007
8:30:35
AM
Lease Expires . . . . . . . . . . : Friday, September 21, 2007
8:30:35 A
M

Windows 2003 R2 Server
Windows IP Configuration

Host Name . . . . . . . . . . . . : special2
Primary Dns Suffix . . . . . . . : rockville.special-tees.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : rockville.special-tees.com
special-tees.com

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection
Physical Address. . . . . . . . . : 00-14-22-B3-E1-18
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.1.10.2
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.1.10.1
DNS Servers . . . . . . . . . . . : 127.0.0.1
Primary WINS Server . . . . . . . : 10.1.10.2

- how are the options for DHCP configured

Providing Gateway, DNS, WINS, IP information to clients. there is a scope of
about 20 addresses in the 10.0.0.0 IP range.

Bob


"Meinolf Weber" wrote:

> Hello Bob,
>
> Just to clarify:
>
> - one new 2003 server,installed as DC DNS DHCP, all clients moved to new
> domain
>
> - will you still use the ISA or work without the ISA?
>
> - please post an ipconfig /all from DNS server and one client
>
> - how are the options for DHCP configured
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
>
> > I have a strange issue that I need help with - here are the details:
> >
> > I recently moved a small business office off of Small Business Server
> > 2000 which was running as a DC, DNS Server, DHCP, and IS 2000. This
> > office has 10 users, so I went the fully manual way. I took a new
> > Windows 2003 R2 server, built a new DC, and added DNS and DHCP
> > services to it. I changed the Domain name when I did it as well,
> > because the person who created the initial SBS 2000 domain named it
> > the same as their registered domain name (which caused issues with the
> > externally hosted web site,etc). The SBS 2000 domain name was
> > special-tees.com, and I built the new domain as home.special-tees.com.
> > I also switched the IP addressing scheme from a 192.168.0.0 group on
> > SBS 2000 to a 10.0.0.0 group on the new domain.
> >
> > While both domains were running at the same time I went to each
> > workstation, removed them from the SBS 2000 domain, removed the ISA
> > 2000 Firewall client, removed them from the old domain and put them in
> > a Workgroup, rebooted, joined the new domain, renewed their IP
> > addresses with DHCP on the new Windows 2003 R2 server (10.0.0.0), and
> > configured the workstations Apps, etc ... I kept both domains running
> > at the same time because I wanted to make sure I properly removed each
> > workstation for the old domain so no traces of the old domain would be
> > left behind. Since they are completely different IP ranges, they were
> > never using the same default gateway address. I did that for all of
> > the workstations and they are all communicating fine with one another.
> > I then demoted the old SBS 2000 server and removed the AD, DNS, and
> > DHCP roles that it had.
> >
> > Here is the issue - they are having intermittent internet connectivity
> > issues. If I unplug the two Ethernet cables from the ISA 2000 server
> > (which was acting as their Internet proxy before we migrated to the
> > new Domain), they have an intermittent internet connection. Sometimes
> > it is really slow, sometimes it if fine, sometimes they have no
> > connection at all. If there is no connection I can go to the ISA
> > server, plug the cables back in, and the Internet connection is back
> > right away at full speed. If I leave it plugged in, the same thing
> > happens - the internet access degrades and becomes intermittent. If I
> > unplug them the internet connection comes back immediately - then the
> > same thing happens again. What is going on? There are two different IP
> > addressing schemes, none of the systems are pointing to the old
> > gateway AT ALL on the ISA 2000 server, but for some reason the clients
> > are occasionally trying to get to the internet via the old ISA server!
> > Am I missing something here? I even cleared the DNS cache from the
> > workstations and nothing .
> >
> > Anyone have any ideas??
> >
> > Bob
> >

>
>
>

 
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Meinolf Weber
Guest
Posts: n/a

 
      09-13-2007, 09:26 PM
Hello Bob,

Have you setup forwarders on the DNS server to your ISP's DNS server?

Are the clients configured in IE settings to use the ISA as a proxy?

For the DNS server itself i would change from the loopback interface ip address
to the real one, becomes important if you use more then one DNS server, just
a suggestion.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.

> Thank you for your response - here are my answers to your questions:
>
> - one new 2003 server,installed as DC DNS DHCP, all clients moved to
> new domain
>
> That is correct. All clients were removed from the old SBS 2000 domain
> and added to the 2003 R2 domain and those are the services running.
>
> - will you still use the ISA or work without the ISA?
>
> We are trying to get away from ISA, but if i unplug the server now it
> affects the Internet access for everyone, even though they are on a
> 10.0.0.0 network (the ISA was 192.168.0.0). Right now we are going
> direct to our Internet router, bypassing ISA. ISA is still plugged
> directly into the same switch though, but it is addressed differently.
>
> - please post an ipconfig /all from DNS server and one client
>
> XP Workstation
> Windows IP Configuration
> Host Name . . . . . . . . . . . . : Ed
> Primary Dns Suffix . . . . . . . : rockville.special-tees.com
> Node Type . . . . . . . . . . . . : Hybrid
> IP Routing Enabled. . . . . . . . : No
> WINS Proxy Enabled. . . . . . . . : No
> DNS Suffix Search List. . . . . . : rockville.special-tees.com
> rockville.special-tees.com
> special-tees.com
> Ethernet adapter Local Area Connection:
>
> Connection-specific DNS Suffix . : rockville.special-tees.com
> Description . . . . . . . . . . . : Intel(R) PRO/100 VE
> Network
> Connecti
> on
> Physical Address. . . . . . . . . : 00-07-E9-6E-4C-DE
> Dhcp Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
> IP Address. . . . . . . . . . . . : 10.1.10.102
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . : 10.1.10.1
> DHCP Server . . . . . . . . . . . : 10.1.10.2
> DNS Servers . . . . . . . . . . . : 10.1.10.2
> Primary WINS Server . . . . . . . : 10.1.10.2
> Lease Obtained. . . . . . . . . . : Thursday, September 13,
> 2007
> 8:30:35
> AM
> Lease Expires . . . . . . . . . . : Friday, September 21, 2007
> 8:30:35 A
> M
>
> Windows 2003 R2 Server
> Windows IP Configuration
> Host Name . . . . . . . . . . . . : special2
> Primary Dns Suffix . . . . . . . : rockville.special-tees.com
> Node Type . . . . . . . . . . . . : Hybrid
> IP Routing Enabled. . . . . . . . : No
> WINS Proxy Enabled. . . . . . . . : No
> DNS Suffix Search List. . . . . . : rockville.special-tees.com
> special-tees.com
> Ethernet adapter Local Area Connection:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network
> Connection
> Physical Address. . . . . . . . . : 00-14-22-B3-E1-18
> DHCP Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 10.1.10.2
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . : 10.1.10.1
> DNS Servers . . . . . . . . . . . : 127.0.0.1
> Primary WINS Server . . . . . . . : 10.1.10.2
> - how are the options for DHCP configured
>
> Providing Gateway, DNS, WINS, IP information to clients. there is a
> scope of about 20 addresses in the 10.0.0.0 IP range.
>
> Bob
>
> "Meinolf Weber" wrote:
>
>> Hello Bob,
>>
>> Just to clarify:
>>
>> - one new 2003 server,installed as DC DNS DHCP, all clients moved to
>> new domain
>>
>> - will you still use the ISA or work without the ISA?
>>
>> - please post an ipconfig /all from DNS server and one client
>>
>> - how are the options for DHCP configured
>>
>> Best regards
>>
>> Meinolf Weber
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers
>> no rights.
>>> I have a strange issue that I need help with - here are the details:
>>>
>>> I recently moved a small business office off of Small Business
>>> Server 2000 which was running as a DC, DNS Server, DHCP, and IS
>>> 2000. This office has 10 users, so I went the fully manual way. I
>>> took a new Windows 2003 R2 server, built a new DC, and added DNS and
>>> DHCP services to it. I changed the Domain name when I did it as
>>> well, because the person who created the initial SBS 2000 domain
>>> named it the same as their registered domain name (which caused
>>> issues with the externally hosted web site,etc). The SBS 2000 domain
>>> name was special-tees.com, and I built the new domain as
>>> home.special-tees.com. I also switched the IP addressing scheme from
>>> a 192.168.0.0 group on SBS 2000 to a 10.0.0.0 group on the new
>>> domain.
>>>
>>> While both domains were running at the same time I went to each
>>> workstation, removed them from the SBS 2000 domain, removed the ISA
>>> 2000 Firewall client, removed them from the old domain and put them
>>> in a Workgroup, rebooted, joined the new domain, renewed their IP
>>> addresses with DHCP on the new Windows 2003 R2 server (10.0.0.0),
>>> and configured the workstations Apps, etc ... I kept both domains
>>> running at the same time because I wanted to make sure I properly
>>> removed each workstation for the old domain so no traces of the old
>>> domain would be left behind. Since they are completely different IP
>>> ranges, they were never using the same default gateway address. I
>>> did that for all of the workstations and they are all communicating
>>> fine with one another. I then demoted the old SBS 2000 server and
>>> removed the AD, DNS, and DHCP roles that it had.
>>>
>>> Here is the issue - they are having intermittent internet
>>> connectivity issues. If I unplug the two Ethernet cables from the
>>> ISA 2000 server (which was acting as their Internet proxy before we
>>> migrated to the new Domain), they have an intermittent internet
>>> connection. Sometimes it is really slow, sometimes it if fine,
>>> sometimes they have no connection at all. If there is no connection
>>> I can go to the ISA server, plug the cables back in, and the
>>> Internet connection is back right away at full speed. If I leave it
>>> plugged in, the same thing happens - the internet access degrades
>>> and becomes intermittent. If I unplug them the internet connection
>>> comes back immediately - then the same thing happens again. What is
>>> going on? There are two different IP addressing schemes, none of the
>>> systems are pointing to the old gateway AT ALL on the ISA 2000
>>> server, but for some reason the clients are occasionally trying to
>>> get to the internet via the old ISA server! Am I missing something
>>> here? I even cleared the DNS cache from the workstations and nothing
>>> .
>>>
>>> Anyone have any ideas??
>>>
>>> Bob
>>>



 
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Bob Randall
Guest
Posts: n/a

 
      09-14-2007, 12:46 AM
No one is using the proxy at all, and there is no nneed to put in forwarders
to the ISP's DNS servers. Windows automatically forwards the requests to its
own internal list of DNS servers. No one has any issues browsing the Internet
or anything ... Also, I tried changing the loopback address to the real
address and it didn't make any difference.

I want to decommission the old ISA server, but my hands or sort of tied
until I can resolve this issue. Sometimes the Internet access works with the
ISA server plugged in, other times I have to unplug the ISA server to get to
the internet. That happens about 15 times a day or so right now.

Bob


"Meinolf Weber" wrote:

> Hello Bob,
>
> Have you setup forwarders on the DNS server to your ISP's DNS server?
>
> Are the clients configured in IE settings to use the ISA as a proxy?
>
> For the DNS server itself i would change from the loopback interface ip address
> to the real one, becomes important if you use more then one DNS server, just
> a suggestion.
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
>
> > Thank you for your response - here are my answers to your questions:
> >
> > - one new 2003 server,installed as DC DNS DHCP, all clients moved to
> > new domain
> >
> > That is correct. All clients were removed from the old SBS 2000 domain
> > and added to the 2003 R2 domain and those are the services running.
> >
> > - will you still use the ISA or work without the ISA?
> >
> > We are trying to get away from ISA, but if i unplug the server now it
> > affects the Internet access for everyone, even though they are on a
> > 10.0.0.0 network (the ISA was 192.168.0.0). Right now we are going
> > direct to our Internet router, bypassing ISA. ISA is still plugged
> > directly into the same switch though, but it is addressed differently.
> >
> > - please post an ipconfig /all from DNS server and one client
> >
> > XP Workstation
> > Windows IP Configuration
> > Host Name . . . . . . . . . . . . : Ed
> > Primary Dns Suffix . . . . . . . : rockville.special-tees.com
> > Node Type . . . . . . . . . . . . : Hybrid
> > IP Routing Enabled. . . . . . . . : No
> > WINS Proxy Enabled. . . . . . . . : No
> > DNS Suffix Search List. . . . . . : rockville.special-tees.com
> > rockville.special-tees.com
> > special-tees.com
> > Ethernet adapter Local Area Connection:
> >
> > Connection-specific DNS Suffix . : rockville.special-tees.com
> > Description . . . . . . . . . . . : Intel(R) PRO/100 VE
> > Network
> > Connecti
> > on
> > Physical Address. . . . . . . . . : 00-07-E9-6E-4C-DE
> > Dhcp Enabled. . . . . . . . . . . : Yes
> > Autoconfiguration Enabled . . . . : Yes
> > IP Address. . . . . . . . . . . . : 10.1.10.102
> > Subnet Mask . . . . . . . . . . . : 255.255.255.0
> > Default Gateway . . . . . . . . . : 10.1.10.1
> > DHCP Server . . . . . . . . . . . : 10.1.10.2
> > DNS Servers . . . . . . . . . . . : 10.1.10.2
> > Primary WINS Server . . . . . . . : 10.1.10.2
> > Lease Obtained. . . . . . . . . . : Thursday, September 13,
> > 2007
> > 8:30:35
> > AM
> > Lease Expires . . . . . . . . . . : Friday, September 21, 2007
> > 8:30:35 A
> > M
> >
> > Windows 2003 R2 Server
> > Windows IP Configuration
> > Host Name . . . . . . . . . . . . : special2
> > Primary Dns Suffix . . . . . . . : rockville.special-tees.com
> > Node Type . . . . . . . . . . . . : Hybrid
> > IP Routing Enabled. . . . . . . . : No
> > WINS Proxy Enabled. . . . . . . . : No
> > DNS Suffix Search List. . . . . . : rockville.special-tees.com
> > special-tees.com
> > Ethernet adapter Local Area Connection:
> >
> > Connection-specific DNS Suffix . :
> > Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network
> > Connection
> > Physical Address. . . . . . . . . : 00-14-22-B3-E1-18
> > DHCP Enabled. . . . . . . . . . . : No
> > IP Address. . . . . . . . . . . . : 10.1.10.2
> > Subnet Mask . . . . . . . . . . . : 255.255.255.0
> > Default Gateway . . . . . . . . . : 10.1.10.1
> > DNS Servers . . . . . . . . . . . : 127.0.0.1
> > Primary WINS Server . . . . . . . : 10.1.10.2
> > - how are the options for DHCP configured
> >
> > Providing Gateway, DNS, WINS, IP information to clients. there is a
> > scope of about 20 addresses in the 10.0.0.0 IP range.
> >
> > Bob
> >
> > "Meinolf Weber" wrote:
> >
> >> Hello Bob,
> >>
> >> Just to clarify:
> >>
> >> - one new 2003 server,installed as DC DNS DHCP, all clients moved to
> >> new domain
> >>
> >> - will you still use the ISA or work without the ISA?
> >>
> >> - please post an ipconfig /all from DNS server and one client
> >>
> >> - how are the options for DHCP configured
> >>
> >> Best regards
> >>
> >> Meinolf Weber
> >> Disclaimer: This posting is provided "AS IS" with no warranties, and
> >> confers
> >> no rights.
> >>> I have a strange issue that I need help with - here are the details:
> >>>
> >>> I recently moved a small business office off of Small Business
> >>> Server 2000 which was running as a DC, DNS Server, DHCP, and IS
> >>> 2000. This office has 10 users, so I went the fully manual way. I
> >>> took a new Windows 2003 R2 server, built a new DC, and added DNS and
> >>> DHCP services to it. I changed the Domain name when I did it as
> >>> well, because the person who created the initial SBS 2000 domain
> >>> named it the same as their registered domain name (which caused
> >>> issues with the externally hosted web site,etc). The SBS 2000 domain
> >>> name was special-tees.com, and I built the new domain as
> >>> home.special-tees.com. I also switched the IP addressing scheme from
> >>> a 192.168.0.0 group on SBS 2000 to a 10.0.0.0 group on the new
> >>> domain.
> >>>
> >>> While both domains were running at the same time I went to each
> >>> workstation, removed them from the SBS 2000 domain, removed the ISA
> >>> 2000 Firewall client, removed them from the old domain and put them
> >>> in a Workgroup, rebooted, joined the new domain, renewed their IP
> >>> addresses with DHCP on the new Windows 2003 R2 server (10.0.0.0),
> >>> and configured the workstations Apps, etc ... I kept both domains
> >>> running at the same time because I wanted to make sure I properly
> >>> removed each workstation for the old domain so no traces of the old
> >>> domain would be left behind. Since they are completely different IP
> >>> ranges, they were never using the same default gateway address. I
> >>> did that for all of the workstations and they are all communicating
> >>> fine with one another. I then demoted the old SBS 2000 server and
> >>> removed the AD, DNS, and DHCP roles that it had.
> >>>
> >>> Here is the issue - they are having intermittent internet
> >>> connectivity issues. If I unplug the two Ethernet cables from the
> >>> ISA 2000 server (which was acting as their Internet proxy before we
> >>> migrated to the new Domain), they have an intermittent internet
> >>> connection. Sometimes it is really slow, sometimes it if fine,
> >>> sometimes they have no connection at all. If there is no connection
> >>> I can go to the ISA server, plug the cables back in, and the
> >>> Internet connection is back right away at full speed. If I leave it
> >>> plugged in, the same thing happens - the internet access degrades
> >>> and becomes intermittent. If I unplug them the internet connection
> >>> comes back immediately - then the same thing happens again. What is
> >>> going on? There are two different IP addressing schemes, none of the
> >>> systems are pointing to the old gateway AT ALL on the ISA 2000
> >>> server, but for some reason the clients are occasionally trying to
> >>> get to the internet via the old ISA server! Am I missing something
> >>> here? I even cleared the DNS cache from the workstations and nothing
> >>> .
> >>>
> >>> Anyone have any ideas??
> >>>
> >>> Bob
> >>>

>
>
>

 
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