Can't see BDC

What do you mean by cant see the BDC? Do you mean you can not browse the BDC' shared folders ??.
If you are using login scripts for users then make sure that you enabled replication between PDC and BDC .

First of all make sure that WINS installed on Both PDC and BDC (Which is done in your case)
then please check the following:
Open WINS Manager and:
1.On PDC you should add the BDC in Replication Partners (Under Server-add WINS Server)
2. On BDC you should add the PDC in Replication Partners (Under Server-add WINS Server)
3. When you did the above, on PDC open WINS Manager again from Menue choose Server- Replication Partners click on the BDC ( and make sure that under replication Options you checked the pull and push.
on BDC open WINS Manager, from Menue choose Server- Replication Partners click on the PDC ( and make sure that under replication Options you checked the pull and push.

4. after you make sure that both PDC and BDC havethe other partner added, go to Menue Server - replication partners, click on the patner you will see on the right a button "Replicate now" press on it (Should be done on both Servers)
Also please open the WINS manager again from the menue choose Server-Configuration
You will got a screen click on advanced button and make sure that Riplicate only with Partners is cheched. (Should be done on both Servers)

After that Stop the WINS Service and restart it again....(On both Servers)
To stop theWINS service and start it again go to:
Start-settings-control panel, double click on Services
Scroll down until you find Windows Internet Name Service, click on it then from the right choose stop, after it stops click on Start, or
You can restartboth Servers...

If you have any questions regarding the above please don't hasitate contacting me @
taiseermustafa@yahoo.com

Good Luck.

The machines are both acting as Browse Masters when the network gets split like this. I have seen it before. What I would do first is this:

Remove WINS from the BDC. (if there)
Blast the WINS db on the PDC and start fresh.

Configure DHCP topoint everybody to the PDC for WINS. Configure IP on the BDC to point to the PDC for WINS.

And, the crucial step that may have been missed.... Configure IP on the PDC to point to the PDC for WINS. Reboot the PDC, THEN reboot the BDC.

Reboot all of the workstations.

Make sure the service packs on both servers at SP4 or later and make sure they are the SAME!

Lastly, re-install WINS on the BDC and configure the two servers as PUSH/PULL partners for each other.

Hi Nadesdan,

the only thing i see is that you have no Problems with the Naming resolution. I could only guess the reason, here are some things you should check.

1.) Go to a client, who is loged into the Netwerk and open an CMD Window and type SET. The Variable Logonserver shows you which of the two Server makes the authenification. Is it the PDC or the BDC ?

2.) Take the Tool NLTEST.EXe from Reskit, look in the Doku and check the scuritychannel between the DC?s. If faulty renew it withthis tool.

3.) When you arrive the next morning and you have the same Problem, check the nic in the BDC. Maybe the driver or the card is faulty. Reinstall the Nic-driver.

I you had a sniffer then check the pakets in your lan.

I know this wouldn?t help in first step, but i think the results could help us to analyze the Problem .

Frobo

Check if you have too many protocols installed. Deinstall those you don't need. You need to check that on all PCs. When there are too many protocols installed you generate too much unnecessary network Trafic, which may cause the network browse to timeout. If you can search for the network resources (not through the Browser, but through Find Computer etc.) and find that resource then it sin't really a problem. Once you have found a resource that way you should also be able to browse it after that.

One more thing: when the pdc and the clients cant see the bdc, the bdc ahs no problem seeing anyone else

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