Master Browser Problem with new VLAN

[Chasey]

Since we have had a VLAN introduced to start splitting up our network we have had about 4 PCs from the VLAN thinking they are the master browser for the domain. This only happens from PCs in the VLAN. The followinf error re-ocurrs on the PDC.

"The master browser has received a server announcement from the computer PC1 that believes that it is the master browser for the domain on transport NetBT_CpqNF31. The master browser is stopping or an election is being forced. "

The computers believing they a the Master Browser for the Domain are all NT4 Workstations and have the "IsDomainMasterBrowser" set to False.

Any help would be most welcome

 

[ensorg]

Try setting the following key from auto to false on the clients

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Browser\Parameters\MaintainServerList

 

[Chasey]

This will only mean that all the PCs in the VLAN will not become browsers. This could affect browsing. Ideally I would like them to participate in browsing but not try to become the Domain Master Browser.

 

[ensorg]

As far as i was aware that reg hack stopped the machine from tring to be a domain master browser, but still allowed them to participate in browsing. The only time I have used it was on a multihomed server and it didn't affect browsing to or from it.

It may be different on a client machine.

 

[Chasey]

Thanks for the reply.
I have just found that if the switch that is used to configure the VLAN is forwarding UDP broadcasts this can cause the problem we are having.
We are now going to try to turn of forwarding on the switch to see this cures it.

 

[ensorg]

Hope that solves the problem