In tip 2004 and its' links, we dealt with some reasons for Event ID 2022.

If your Windows NT 4.0 receives multiple instances of:

Event 2022: Server was unable to find a free connection 1 times in the last 60 seconds

your disk may be nearly full or heavily fragmented, causing a request to grow a file to take too long while Windows NT searches for free space.

If that is not the cause on your commputer, you can experiment with the following registry values:

Key:      HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters

Value Name:  MaxFreeConnections
Type:     REG_DWORD
Range:  1 - 100

Value Name:  MinFreeConnections
Type:     REG_DWORD
Range:  1 - 32

NOTE: The default data values for these entries are configuration dependent.