computer cant see other computers on network, map drives and other computers cant see it

interesting and frustrating issue here.

i have a network, called CBL  all of a sudden 1 of the computers can no longer see any other computer on the network though windows share. I can ping the other computers by name from a command prompt, example ping housekeeping returns a ping as does usinge its ip adress. I can access the internet and bring in web sites form this computer but when browsing the network the only computer it sees is itself. none of the mapped drives will reconnect . AND other computers cant connect to the shared drive on that machine. I cant even map to it useing the ip adress and drive example \\10.0.0.39\junk

any ideas?

cblzaccieAsked:
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TekServerCommented:
What version of Windows?  If it's XP, verify the firewall is turned off.  If it's an earlier version, especially 9x, you may need to remove & reinstall Client for Microsoft Networks.

Hope this helps!
:)
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cblzaccieAuthor Commented:
xp and yes firewall is off.
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TekServerCommented:
Check the Computer Browser service and make sure it is running.

If that doesn't help, here are a couple of things to try/clarify:

- Is this a workgroup or domain?
- What servers (if any) are present on this network?  i.e. DNS, DHCP, WINS, etc.
- Was there anything that happened immediately prior to these problems starting, such as Windows Updates or some other software being installed?
- Can you browse to another computer by typing its name in the address bar in UNC format (i.e. \\COMPUTER2)?  If not, what error is generated?
- Are there any errors in the event log that may be relevant (especially browser-related errors in the System Log)?

:)
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cblzaccieAuthor Commented:
yes the coomputer browser service is started.

its on a domain

we have a dns server, dhcp and wins , i checked and all are operations, all ther other computers on the domain can see mapped drives  on other computers APART from this one.

no updates were applied and ran virus and windows defender scans, all come clean






no, using \\housekeeping  it says windows cannot find housekeeping
hoever if i open a command promt and type ping housekeeping i get a ping response

messages in the eeror logs are:

Event Type:      Error
Event Source:      Userenv
Event Category:      None
Event ID:      1030
Date:            11/10/2008
Time:            5:34:04 PM
User:            NT AUTHORITY\SYSTEM
Computer:      CLAIRE
Description:
Windows cannot query for the list of Group Policy objects. A message that describes the reason for this was previously logged by the policy engine.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.


does this help??

- Is this a workgroup or domain?
- What servers (if any) are present on this network?  i.e. DNS, DHCP, WINS, etc.
- Was there anything that happened immediately prior to these problems starting, such as Windows Updates or some other software being installed?
- Can you browse to another computer by typing its name in the address bar in UNC format (i.e. \\COMPUTER2)?  If not, what error is generated?
- Are there any errors in the event log that may be relevant (especially browser-related errors in the System Log)?
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seanlewisokcCommented:
In services turn on the service RPC Locator set to automatic then try to browse to it. Also disable firewall or Internet security services adn stop them. One or the other causes issue.
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TekServerCommented:
RPC Locator is worth a try.  If that doesn't help, you may need to disjoin from & rejoin to domain.  If you get any error messages during this procedure (which I suspect you will), make sure you delete the computer account from AD before rejoining to domain.

:)
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seanlewisokcCommented:
Also if still apart of domain goto command prompt and do a gpresult on machine having issue. See if GPpolicies are the same as another like machine. Also do gpupdate /force then do flush of dns ipconfig /flushdns ipconfig /registerdns If machine is getting DHCP information set the DNS static to your inside DNS then take computer out of domain making sure you know the local password for administrator... how many people forget to do this?? reboot and delete AD record of computer. Then readd to domain. I have hit this wall a few times.. and sometimes its a shotgun method i do all of these and it works.
other known problems:
Norton/symatec or som other Antivirus/firewall 3rd party ap, Network card drivers need updated, machine name or IP duplicated on network.
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TekServerCommented:
> making sure you know the local password for administrator... how many people forget to do this?

A very good point.  I have had to boot off of a Utility CD and reset a local administrator password a time or two myself.

:)
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cblzaccieAuthor Commented:
lol well i removed it from the domain NOW of course it cant see the domain controller :( to rejoin. ARRRRRGH so its set to workgroup and can stil aceess the internet, i have all patches and updates applied, firewall off. and abg off.
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TekServerCommented:
On the domain controller, make sure the computer account for the workstation in question is deleted from Active Directory.

If you still can't rejoin after deleting the computer account, try Sean's other suggestions:
- "ipconfig /flushdns"
- "ipconfig /registerdns"
- manually set primary DNS server to domain DNS server (you can also retry the first two commands after doing this)
- check for updated NIC drivers
- check for duplicate computer name or IP on another workstation

Don't worry about the "gpresult" and "gpupdate" commands for now; they don't apply while you're off the domain.

:)
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seanlewisokcCommented:
Do you have separate DNS and domain controller?
If the same box Point your Nic card DNS 1 to the internal DNS with the static. DNS 192.168.1.10 or what ever it is. also look into gpedit on local machine make sure all the local gpolicies where removed after you took it off. Can you ping your gateway DC and domain controller.. if you can ping your DC put cant get to it by name maybe a DNS issue. But a work around:
c:\windows\system32\drivers\etc\host open up host file with notepad put in
[domain controller name] tab over put ip address of domain controller name
[domain controller name.local] tab over put ip address of domain controller name
then ping the domain controller name should return ip with results

another trick to add to domain is if you are on a .local DC setup and say the name was mycompany.local is to type that .local after the mycompany so as to read mycompany.local when your entering in what the name of the domain is.
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cblzaccieAuthor Commented:
nope still same issue. remember i can aces the outside internet no problem, i can ping the DC no problem.

when i try to rejoin the domain i tell it to join cbl.local

then it asks for user name and password.

then tells me  "the network location cannot be reached"
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seanlewisokcCommented:
ok on services.msc goto TCP/IP NETBIOS helper... if it is stopped set to automatic make sure it is started. if not start it or set to automatic. Try that.. let me know. If not start it and you start it try to join domain by .local.
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cblzaccieAuthor Commented:
yes that was started and running
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TekServerCommented:
Just out of curiosity, can you join the domain using the NetBIOS name ("cbl") instead of the full DNS name (cbl.local)?

Also there's a PAQ here that has a number of things you can try: http://www.experts-exchange.com/Networking/Protocols/Q_22734266.html

:)
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