Windows 7 cannot map drives or see shares on servers except 2008 Servers

Hi,

1. Click Start->Control Panel. Double-click Network and Sharing Center.
2. In the left pane, click "Change advanced sharing settings".
3. Make sure that "Network discovery" and "File printer sharing" are turned on.

If non of above works, try synching the NTLM authentication option setting in GPEdit.msc:
Comp. Conf.\Windows settings\Security settings\security options\Network Security:Lan manager authentication level.

Try unjoining the domain

log on locally on the W7 box with administrator privileges

then unjoin the domain and join to workgroup , restart , then join back again with your domain admin password to verify the joining to domain.

Hope this helps

There are too many unknows to troubleshoot this.

In what way are you pinging? (by netbios name, by DNS name, by IP)

Your file shares are populated in "My network Places" by the domain browser service. That uses netbios broadcasts within the domain. Netbios broadcasts are not routeable. This means they will not go over NAT, through a VPN tunnel, or to different subnets, and some software firewalls block these broadcasts.

The best way to troubleshoot if via ping. Can you ping by netbios name? Ping is a multi-communications troubleshooting to. So, the syntax of use is very important to how you are troubleshooting. You may be able to ping by IP address, but not netbios name. If this is the case, you are having problems with netbios.

Example of syntax using ping:
Ping Servername   (is pinging by netbios name)
Ping servername.domain.name (is pinging by DNS resolution)
Ping xxx.xxx.xxx.xxx (is pinging by IP address)

After determining if you can ping by netbios name, we also need to know if you are trying to get remote sites or subnets to check in with the browser service. If so, you will have to use WINS to do so. I have the information needed to help you set up wins between the domain master browser and all remote browsers if needed. Please advise.

Likely due to the enhanced authenication in Windows 7.

Try this:

Click Start
Click Control Panel
Click Administrative Tools
Double-Click Local Security Policy
In the left pane, click the triangle next to Local Policy
In the left pane, click Security Options
In the right pane near the bottom, double-click "Network security:
LAN manager authentication level"
Click the drop-down box, and click "Send LM & NTLM - use NTLMv2
session security if negotiated"
Click OK

I am on the same subnet as the servers in question.  Again, i can get a list of shares on any windows 2008 servers in our domain, but not w2k3.  I can ping any of the problem servers by name or IP address.  I've tried all recommendations listed above but nothing's working.  WHen i try to map the drive via cmd prompt, i get an error 67 ...

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Ok i figured it out.   It was a security service running in the background.  Wow, even if the program is halted or closed, the mere running of the service still creates the communication error between the two systems.  In my case, it was PC Tools security service, hope this helps someone else (obviously instead of stopping the service, the trick is to config the program to allow network browsing -- still working on that!).