Cannot see other computers in My Network Places

I have a Windows Server 2003 server in my domain. Since monday I haven't been able to se other computers when I go to
-My Network Places
   -Entire Network
      -Microsoft Windows Network

I get this error message when I try to click MyDomain
Network Error
I can ping the other machines in the network, but when I do a NET VIEW I get this error message:
System Error 87 has occurred
The parameter is incorrect

Lately I have installed a bunch of Microsoft Updates and it is after this the network has been inaccessible (I guess).

The server host SCCM 2007

Any ideas on how to regain acess to the network from this server.
Kasper KatzmannSeniorkonsulentAsked:
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Firstly check the services of server specially DNS,network,workstation.Open command prompt & type their nslookup & check the server status, if the status is unknown so this is the major problem.

Download netdiag & dc diag utility,install it & run & check the reports.

If the firewall is configured.Then you may proceed for firewall setting.  

please let me know

Tushar Kaskhedikar
I'm assuming that you are on a client machine that is in the domain, if so make sure that the computer browser service is started (Start>run>services.msc)

let me know
Kasper KatzmannSeniorkonsulentAuthor Commented:
When I run NSLOOKUP I get this:

P:\>nslookup mailserver1
*** Can't find server name for address Non-existent domain
Server: UnKnown

Name: mailserver1.MyDomain

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Kasper KatzmannSeniorkonsulentAuthor Commented:
The service is running and have been restarted, just to be sure...
Kasper KatzmannSeniorkonsulentAuthor Commented:
I have solved the NSLOOKUP problem. I changed the order of the DNS servers list and now there is no error.

But I still can't browse my network places and NET VIEW still gives the same error:
System Error 87 has occurred
The parameter is incorrect
i think your best friend here is the event log check to see what errors there are or what services havnt started.
also check the net logon service is running.
are you having this problem on the server itself or is it a client machine, if client machine - which o/s ?

Check for DNS server forward & reverse lookup zone.
Open DNS server - reverse lookup - & check host (A) records.

let me know

Tushar Kaskhedikar

Kasper KatzmannSeniorkonsulentAuthor Commented:
All services seems to run as they should, including the net logon service.
The net view error occurs on both server and client machines. Server(s) are Win 2003, clients are XP

There is nothing in reverse lookup - it is empty...
Remove all dns addresses from your dns list..
Add your domain controler ip as the ONLY dns server

run cmd and use these two commands:
1. ipconfig /flushdns
2. ipconfig /registerdns

if this doesn't work rejoin domain so it will automatically re-create trust relationship with domain controller.
Kasper KatzmannSeniorkonsulentAuthor Commented:
Strange... I have solved the problem. I changed the network cable from the DNS-server to the switch with a new cable and I connected the new cable to one of the other network adapters on that server.

Now it works. I don't now why, but it does ...strange.

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