UNC + IP connections to local host + remote host fails.

I have a windows 2008 R2 server. I can ping all the other servers in the domain but if I do a \\computername\share I get a "windows cannot access \\computername\share"

- Nslookup for the computer DNS name comes back fine.

- Pinging the computer comes back fine

- \\localhost\c$ gives me the same error, going by IP instead of UNC also fails

- Net share shows that the C$, IPC$ and ADMIN$ are all shared out

- Other servers in the domain are able to connect to shares on the server in question without problems.

- Windows firewall is off as well

Because of this problem  I can't update group policy either on the server. It can't connect to SYSVOL

I've looked but i can't find a solution anywhere

group policy
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Amitabh SinghAWS Certified Solution Architect | L3 IT Specialist for CloudCommented:
iamuserAuthor Commented:
I did see the document but I'm not looking to install additional software. I want to fix the problem I'm having right now.
David AtkinTechnical DirectorCommented:

Any AD related errors in the event logs?  

Do a dcdiag to see if there are any errors.
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iamuserAuthor Commented:
I have not seen any errors in AD related to this server. When this problem started I thought it was because it was due to a bad policy in the OU that this server was in. I moved it to the default "computer" OU hoping that this problem would be resolved. It was only then that i realized that Group Policy wasn't being processed correctly. The group policy that's failing is the default group policy. But this policy works because the other servers have no problems applying it. Error below

The processing of Group policy failed. Windows attempted to read the file \\domain\sysvol\domain\policies\guid\gpt.ini from domain controller and was not successful.

I know gp fails because it can't s see that share on the DC
iamuserAuthor Commented:
so the problem is I can't update GP to see if it's a GP issue because the server can't see any network shares. But other servers can connect to this server via network share.
iamuserAuthor Commented:
It's been resolved. I found the problem. TCP/IP HELPER was turned off and disabled. Once i turned it back on I was able to get to network shares again.

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iamuserAuthor Commented:
I found answer myself
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