Try the following:
1. Start Regedit or Regedt32
2. Locate and then click the following registry subkey: HKLM|SYSTEM|CurrentControlSet|Services|LanmanServer|Parameters
3. Click Edit, point to New, and then select DWORD Value.
4. Type IRPStackSize and press ENTER. Note: IRPStackSize is case sensitive
5. Click Edit, and then Modify
6. *Set the Value Data to 15 then click OK.
Note: The default value of the IRPStackSize parameter is 15. The range is from 11 (0xb hexadecimal) through 50 (0x32 hexadecimal).
If the problem persists after you complete this procedure, increase the value of IRPStackSize even more.
7. Quit Regedit or Regedt32 and then restart the server.