Windows cannot access \\<servername>

[Cools]

Hello,

 

I have a 2008 installation, where the 2008 server is unable to access shares on the r2003 server The SBS2003 is a dumb fileserver.

 

The error is "Windows cannot access \\." with a detail of "Error code 0x80070035 The network path was not found".

 

The 2008 server is also unable to access shares on XP/2003 machines. However it IS able to access shares on Windows 7 machines.

 

But 2003/XP can access shares on win7 and 2008 and 2008 r2..

 

Machines are equipped with McAfee VirusScan 8.7, but they have access protection disabled. Firewalls are also disabled. TCP over Netbios helper service is started on both machines.

 

I have disabled IPv6 on 2008, and done some reg tweaks found on google

But im at a loss..

 

Any help much appreciated,

[skell]

Can you access it via the IP?

[Cools]

Yes i can access it via IP .. i did think it was a dns problem.. i did try the FQDN but no joy...

[Cools]

i have just added a trial.. 2008 R2 server on the network i have joined it to the domain but when i access any shares it asks for a user name and password..

Strange.. i reset the Domain and Domain controller GPO's back to default but it has not made any difference i did think it was a change i made to get samba/ntlm working in a Linux box.

 

i have no problem accessing my 2003 Home server from windows 7 or (2008 server (over vpn)) shares..

Edited December 17, 2010 by Cools

[skell]

Do you have the firewall on?

 

I've had this problem before, couldn't see any computers that weren't running Windows Vista / 7. I'll try and remember what I did...

[Cools]

1st post: Machines are equipped with McAfee VirusScan 8.7, but they have access protection disabled. Firewalls are also disabled. TCP over Netbios helper service is started on both machines.

 

i can see win7 PC's but win7 and 2008 cant see 2003 server or XP

 

 

the error ms i get when accessing 2003 share at school is "insufficient system resources exist to complete service request"

Edited December 17, 2010 by Cools

[Cools]

http://www.edwardpeake.beds.sch.uk/servererror.jpg

[skell]

If I recall correctly, its something to do with the NTLM settings.

 

Under - Computer Configuration - Policies - Windows Settings - Security Settings - Local Policies/Security Options - Network Security try the following

 

Network security: LAN Manager authentication level Send LM & NTLM - use NTLMv2 session security if negotiated

Network security: LDAP client signing requirements None

Network security: Minimum session security for NTLM SSP based (including secure RPC) clients Enabled

Require NTLMv2 session security Disabled

Require 128-bit encryption Disabled

 

Network security: Minimum session security for NTLM SSP based (including secure RPC) servers Enabled

Require NTLMv2 session security Disabled

 

Require 128-bit encryption Disabled

 

I'll keep looking.

 

Just found this, similar issue.

 

http://www.sevenforums.com/network-sharing/11155-windows-7-cant-see-xp-2003-shares.html

Edited December 17, 2010 by skell

[Cools]

Thanks Skell i will give it a try and let you know how its gone so far..

[Cools]

Did not fix it... still the same problem hmmmmm.. .

[Cools]

Problem solved!

 

Don't ask added two new DC's and over night it fixed the problem.

Strange.

[Cools]

Problem cropped up again and I found a fix in MS forums.. who go it from Windows 7 Nonpaged Pool Srv Error 2017 | alan.lamielle.net

 

------------------------------------------------

 

Apparently you need to tell Windows that you want to use the machine as a file server and that it should allocate resources accordingly.

 

Set the following registry key to ‘1′:

HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\LargeSystemCache

 

and set the following registry key to ‘3′:

HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\Size

 

After making these changes and restarting, I haven’t seen this issue arise again so far..