Server Browser Problem

Strange issue my domain controllers keep losing the ability to browse the
network and as a result my no one can access them. DC01 for some reason
unknown, and nothing in logs, keeps loosing the ability to browse. I finally
got it backup up by rebooting and rebooting, but I know that's not the
solution. Currently it's connected but DC02 can not browse the network and
no matter what I do it's still unable to see anything, however it can be
contacted. I can not however see DNS via DC01. DC01 & DC02 are DNS servers.
I"ve rebooted DC02 time and time. It can ping DC01 by netbios name from
DC01 and I can ping it from DC01 too, but I can not attach via DNS.

I don't know if this is the "calm b4 the storm". I can't seem to figure out
what's causing my Domain Controllers to lose the ability to browse my
network. Nothing has been changed. I've even rebooted all my switches too.
We never lose connectivity to the internet either. Anyone ever seen this????

Ideas????


1xnyer

The computer browser service has nothing to do with DNS. It is an NT
legacy app which relies on LAN broadcasts.

Does your DC have two NICs or are you using it as a remote access
server? Do you have lots of browser election messages in the event log?


"1xnyer" <(E-Mail Removed)> wrote in message
news:B9C26585-2D2B-4A46-BA36-(E-Mail Removed)...
> Strange issue my domain controllers keep losing the ability to browse the
> network and as a result my no one can access them. DC01 for some reason
> unknown, and nothing in logs, keeps loosing the ability to browse. I
> finally
> got it backup up by rebooting and rebooting, but I know that's not the
> solution. Currently it's connected but DC02 can not browse the network
> and
> no matter what I do it's still unable to see anything, however it can be
> contacted. I can not however see DNS via DC01. DC01 & DC02 are DNS
> servers.
> I"ve rebooted DC02 time and time. It can ping DC01 by netbios name from
> DC01 and I can ping it from DC01 too, but I can not attach via DNS.
>
> I don't know if this is the "calm b4 the storm". I can't seem to figure
> out
> what's causing my Domain Controllers to lose the ability to browse my
> network. Nothing has been changed. I've even rebooted all my switches
> too.
> We never lose connectivity to the internet either. Anyone ever seen
> this????
>
> Ideas????

I have 3 nic cards, I've had them working for years like this with no issues.
On DC01 I have 2 nic cards. One is for the regular network and one is a
10.10 for backups. On DC02 I have 3 nic cards, 2 for the network which are
balanced and one for the backup.

Is there anyway to designate a nic card just for the brower elections?

"Bill Grant" wrote:

> The computer browser service has nothing to do with DNS. It is an NT
> legacy app which relies on LAN broadcasts.
>
> Does your DC have two NICs or are you using it as a remote access
> server? Do you have lots of browser election messages in the event log?
>
>
> "1xnyer" <(E-Mail Removed)> wrote in message
> news:B9C26585-2D2B-4A46-BA36-(E-Mail Removed)...
> > Strange issue my domain controllers keep losing the ability to browse the
> > network and as a result my no one can access them. DC01 for some reason
> > unknown, and nothing in logs, keeps loosing the ability to browse. I
> > finally
> > got it backup up by rebooting and rebooting, but I know that's not the
> > solution. Currently it's connected but DC02 can not browse the network
> > and
> > no matter what I do it's still unable to see anything, however it can be
> > contacted. I can not however see DNS via DC01. DC01 & DC02 are DNS
> > servers.
> > I"ve rebooted DC02 time and time. It can ping DC01 by netbios name from
> > DC01 and I can ping it from DC01 too, but I can not attach via DNS.
> >
> > I don't know if this is the "calm b4 the storm". I can't seem to figure
> > out
> > what's causing my Domain Controllers to lose the ability to browse my
> > network. Nothing has been changed. I've even rebooted all my switches
> > too.
> > We never lose connectivity to the internet either. Anyone ever seen
> > this????
> >
> > Ideas????
>
>

Multihomed DCs ar always likely to cause problems with the browser
service.

To prevent the browser service seeing the additional NICs you need to
disable Netbios over TCP/IP on them. Only one IP should be associated with
the computer's Netbios name.

"1xnyer" <(E-Mail Removed)> wrote in message
news:3D2DB031-1221-467C-84F8-(E-Mail Removed)...
>I have 3 nic cards, I've had them working for years like this with no
>issues.
> On DC01 I have 2 nic cards. One is for the regular network and one is a
> 10.10 for backups. On DC02 I have 3 nic cards, 2 for the network which
> are
> balanced and one for the backup.
>
> Is there anyway to designate a nic card just for the brower elections?
>
> "Bill Grant" wrote:
>
>> The computer browser service has nothing to do with DNS. It is an NT
>> legacy app which relies on LAN broadcasts.
>>
>> Does your DC have two NICs or are you using it as a remote access
>> server? Do you have lots of browser election messages in the event log?
>>
>>
>> "1xnyer" <(E-Mail Removed)> wrote in message
>> news:B9C26585-2D2B-4A46-BA36-(E-Mail Removed)...
>> > Strange issue my domain controllers keep losing the ability to browse
>> > the
>> > network and as a result my no one can access them. DC01 for some
>> > reason
>> > unknown, and nothing in logs, keeps loosing the ability to browse. I
>> > finally
>> > got it backup up by rebooting and rebooting, but I know that's not the
>> > solution. Currently it's connected but DC02 can not browse the network
>> > and
>> > no matter what I do it's still unable to see anything, however it can
>> > be
>> > contacted. I can not however see DNS via DC01. DC01 & DC02 are DNS
>> > servers.
>> > I"ve rebooted DC02 time and time. It can ping DC01 by netbios name
>> > from
>> > DC01 and I can ping it from DC01 too, but I can not attach via DNS.
>> >
>> > I don't know if this is the "calm b4 the storm". I can't seem to
>> > figure
>> > out
>> > what's causing my Domain Controllers to lose the ability to browse my
>> > network. Nothing has been changed. I've even rebooted all my switches
>> > too.
>> > We never lose connectivity to the internet either. Anyone ever seen
>> > this????
>> >
>> > Ideas????
>>
>>

Thanks I'm going to try that.

"Bill Grant" wrote:

> Multihomed DCs ar always likely to cause problems with the browser
> service.
>
> To prevent the browser service seeing the additional NICs you need to
> disable Netbios over TCP/IP on them. Only one IP should be associated with
> the computer's Netbios name.
>
> "1xnyer" <(E-Mail Removed)> wrote in message
> news:3D2DB031-1221-467C-84F8-(E-Mail Removed)...
> >I have 3 nic cards, I've had them working for years like this with no
> >issues.
> > On DC01 I have 2 nic cards. One is for the regular network and one is a
> > 10.10 for backups. On DC02 I have 3 nic cards, 2 for the network which
> > are
> > balanced and one for the backup.
> >
> > Is there anyway to designate a nic card just for the brower elections?
> >
> > "Bill Grant" wrote:
> >
> >> The computer browser service has nothing to do with DNS. It is an NT
> >> legacy app which relies on LAN broadcasts.
> >>
> >> Does your DC have two NICs or are you using it as a remote access
> >> server? Do you have lots of browser election messages in the event log?
> >>
> >>
> >> "1xnyer" <(E-Mail Removed)> wrote in message
> >> news:B9C26585-2D2B-4A46-BA36-(E-Mail Removed)...
> >> > Strange issue my domain controllers keep losing the ability to browse
> >> > the
> >> > network and as a result my no one can access them. DC01 for some
> >> > reason
> >> > unknown, and nothing in logs, keeps loosing the ability to browse. I
> >> > finally
> >> > got it backup up by rebooting and rebooting, but I know that's not the
> >> > solution. Currently it's connected but DC02 can not browse the network
> >> > and
> >> > no matter what I do it's still unable to see anything, however it can
> >> > be
> >> > contacted. I can not however see DNS via DC01. DC01 & DC02 are DNS
> >> > servers.
> >> > I"ve rebooted DC02 time and time. It can ping DC01 by netbios name
> >> > from
> >> > DC01 and I can ping it from DC01 too, but I can not attach via DNS.
> >> >
> >> > I don't know if this is the "calm b4 the storm". I can't seem to
> >> > figure
> >> > out
> >> > what's causing my Domain Controllers to lose the ability to browse my
> >> > network. Nothing has been changed. I've even rebooted all my switches
> >> > too.
> >> > We never lose connectivity to the internet either. Anyone ever seen
> >> > this????
> >> >
> >> > Ideas????
> >>
> >>
>
>