The specified network
provider name is invalid
Situation: when accessing shared folder or printer in
Windows Vista or windows 7, you may receive this message “The specified
network provider name is invalid”
Case 1: Make sure all computer have the Microsoft Client for Microsoft
If this client is not installed, you can install it using the following
1. Click Add.
2. Click Client, and then click Add.
3. Click Microsoft, click Client For Microsoft Networks, and then click OK.
4. Click OK.
5. When you are prompted to restart your computer, do so.
Case 2: I managed to find out that the problem was with "File and Printer
Sharing for Microsoft Networks". I went to the properties dialog of my
connection, uninstall that service. After that, I clicked on install and
selected service and reinstalled the same service. After restarting the
computer, I was able to access my network folders.
Case 3: Make sure no firewall or security software block sharing.
Case 4: Reset Network security. Please follow this step to fix the issue:
1. Click Start->Click Control Panel.
2. Click System and Maintenance-> Click Administrative Tools.
3. Double-Click Local Security Policy.
4. In the left pane, click the triangle next to Local Policy.
5. In the left pane, click Security Options.
6. In the right pane near the bottom, double-click "Network security: LAN
manager authentication level".
7. Click the drop-down box, and click "Send LM & NTLM responses". Click OK.
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