Clients can't browse the web after apply SBS2K3 SP1

Hi all,

I have applied the SBS2003 SP1 this weekend following the instructions in
microsoft web and everything seems to be OK, except that all the clients
can't browse the internet. I haven't change anything in configuration, only
apply the SP1 post-SP1 hotfixes. The server itself can navigate without
problems. All other services that need an internet connection (like vpn,
e-mail, terminal services) works well. I can ping and nslookup external
sites (and the router, and my ISP's DNS server) from the clients, so I
think it could be a problem in http/https traffic, but I can't find any
solution. My SBS is dual-homed with the external NIC conected to a DSL
router and ISA Server is not installed. I even had rerun the Internet
connection wizard but with no results. ¿Have anyone any idea on this?

Thanks in advance.
Dante

these page may help,

Connectivity issues after the installation of MS05-019 or Server 2003 SP1

Connection issues after applying Server 2003 SP1

Continuous loop at boot up after installing Server 2003 Sp1


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Dante Alighieri" <(E-Mail Removed)> wrote in message news:%(E-Mail Removed)...
Hi all,

I have applied the SBS2003 SP1 this weekend following the instructions in
microsoft web and everything seems to be OK, except that all the clients
can't browse the internet. I haven't change anything in configuration, only
apply the SP1 post-SP1 hotfixes. The server itself can navigate without
problems. All other services that need an internet connection (like vpn,
e-mail, terminal services) works well. I can ping and nslookup external
sites (and the router, and my ISP's DNS server) from the clients, so I
think it could be a problem in http/https traffic, but I can't find any
solution. My SBS is dual-homed with the external NIC conected to a DSL
router and ISA Server is not installed. I even had rerun the Internet
connection wizard but with no results. ¿Have anyone any idea on this?

Thanks in advance.
Dante

I saw this articles but this isn't the case. Its only the outbound http/https
traffic from the clients. I think it could be one of the hotfixes I installed
after SP1, so I'll try to uninstall them as soon as I can reboot the server.
If any of you have any idea it would be appreciated.

Thanks
Dante
MCSD,MCDBA,MCAD,MCP

"Robert L [MS-MVP]" wrote:

> these page may help,
>
> Connectivity issues after the installation of MS05-019 or Server 2003 SP1
>
> Connection issues after applying Server 2003 SP1
>
> Continuous loop at boot up after installing Server 2003 Sp1
>
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> "Dante Alighieri" <(E-Mail Removed)> wrote in message news:%(E-Mail Removed)...
> Hi all,
>
> I have applied the SBS2003 SP1 this weekend following the instructions in
> microsoft web and everything seems to be OK, except that all the clients
> can't browse the internet. I haven't change anything in configuration, only
> apply the SP1 post-SP1 hotfixes. The server itself can navigate without
> problems. All other services that need an internet connection (like vpn,
> e-mail, terminal services) works well. I can ping and nslookup external
> sites (and the router, and my ISP's DNS server) from the clients, so I
> think it could be a problem in http/https traffic, but I can't find any
> solution. My SBS is dual-homed with the external NIC conected to a DSL
> router and ISA Server is not installed. I even had rerun the Internet
> connection wizard but with no results. ¿Have anyone any idea on this?
>
> Thanks in advance.
> Dante
>
>

Did the Windows firewall get turned on?

--
Todd J Heron, MCSE
Windows Server 2003/2000/NT; CCA
----------------------------------------------------------------------------
This posting is provided "as is" with no warranties and confers no rights

"Dante Alighieri" <Dante (E-Mail Removed)> wrote in
message news:5F3D813B-A554-43E0-82E9-(E-Mail Removed)...
I saw this articles but this isn't the case. Its only the outbound
http/https
traffic from the clients. I think it could be one of the hotfixes I
installed
after SP1, so I'll try to uninstall them as soon as I can reboot the server.
If any of you have any idea it would be appreciated.

Thanks
Dante
MCSD,MCDBA,MCAD,MCP

"Robert L [MS-MVP]" wrote:

> these page may help,
>
> Connectivity issues after the installation of MS05-019 or Server 2003 SP1
>
> Connection issues after applying Server 2003 SP1
>
> Continuous loop at boot up after installing Server 2003 Sp1
>
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on
> http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on
> http://www.HowToNetworking.com
> "Dante Alighieri" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
> Hi all,
>
> I have applied the SBS2003 SP1 this weekend following the instructions
> in
> microsoft web and everything seems to be OK, except that all the clients
> can't browse the internet. I haven't change anything in configuration,
> only
> apply the SP1 post-SP1 hotfixes. The server itself can navigate without
> problems. All other services that need an internet connection (like vpn,
> e-mail, terminal services) works well. I can ping and nslookup external
> sites (and the router, and my ISP's DNS server) from the clients, so I
> think it could be a problem in http/https traffic, but I can't find any
> solution. My SBS is dual-homed with the external NIC conected to a DSL
> router and ISA Server is not installed. I even had rerun the Internet
> connection wizard but with no results. ¿Have anyone any idea on this?
>
> Thanks in advance.
> Dante
>
>

Yes, in the server with NAT. NAT functions OK. Firewall Not activated in
clients.

More strange, today I had http traffic from the clients for a while, without
modifiying anything in the server, and then dissappeared again. It can't be
an ISP problem because I have Internet from the server or a workstation
attached to the router ALWAYS and the rest of services that use the
connection like email or vpn functions perfectly. I am completely lost about
these things. I have unistalled post SP1 hotfixes and rerun ICW, but things
remain the same.

Any ideas??

Today
"Todd J Heron" <(E-Mail Removed)> escribió en el mensaje
news:uC73%(E-Mail Removed)...
> Did the Windows firewall get turned on?
>
> --
> Todd J Heron, MCSE
> Windows Server 2003/2000/NT; CCA
> ----------------------------------------------------------------------------
> This posting is provided "as is" with no warranties and confers no rights
>
> "Dante Alighieri" <Dante (E-Mail Removed)> wrote in
> message news:5F3D813B-A554-43E0-82E9-(E-Mail Removed)...
> I saw this articles but this isn't the case. Its only the outbound
> http/https
> traffic from the clients. I think it could be one of the hotfixes I
> installed
> after SP1, so I'll try to uninstall them as soon as I can reboot the
> server.
> If any of you have any idea it would be appreciated.
>
> Thanks
> Dante
> MCSD,MCDBA,MCAD,MCP
>
> "Robert L [MS-MVP]" wrote:
>
>> these page may help,
>>
>> Connectivity issues after the installation of MS05-019 or Server 2003 SP1
>>
>> Connection issues after applying Server 2003 SP1
>>
>> Continuous loop at boot up after installing Server 2003 Sp1
>>
>>
>> Bob Lin, MS-MVP, MCSE & CNE
>> Networking, Internet, Routing, VPN Troubleshooting on
>> http://www.ChicagoTech.net
>> How to Setup Windows, Network, VPN & Remote Access on
>> http://www.HowToNetworking.com
>> "Dante Alighieri" <(E-Mail Removed)> wrote in message
>> news:%(E-Mail Removed)...
>> Hi all,
>>
>> I have applied the SBS2003 SP1 this weekend following the instructions
>> in
>> microsoft web and everything seems to be OK, except that all the
>> clients
>> can't browse the internet. I haven't change anything in configuration,
>> only
>> apply the SP1 post-SP1 hotfixes. The server itself can navigate without
>> problems. All other services that need an internet connection (like
>> vpn,
>> e-mail, terminal services) works well. I can ping and nslookup external
>> sites (and the router, and my ISP's DNS server) from the clients, so I
>> think it could be a problem in http/https traffic, but I can't find any
>> solution. My SBS is dual-homed with the external NIC conected to a DSL
>> router and ISA Server is not installed. I even had rerun the Internet
>> connection wizard but with no results. ¿Have anyone any idea on this?
>>
>> Thanks in advance.
>> Dante
>>
>>
>