#define EVENT_SRV_NO_FREE_CONNECTIONS 0x800007E6L
MessageId: EVENT_SRV_NO_FREE_CONNECTIONS MessageText: The server was unable to find a free connection %2 times in the last %3 seconds. This indicates a spike in network traffic. If this is happening frequently, you should consider increasing the minimum number of free connections to add headroom. To do that, modify the MinFreeConnections and MaxFreeConnections for the LanmanServer in the registry.
Lanman Server Events (2000 - 2999)
    2000-2499 are generated by the server driver (kernel mode)
    2500-2999 are generated by the server service (user mode)
Server driver events, issued from kernel mode. 
 Values are 32 bit values laid out as follows:
  3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
  1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
 +---+-+-+-----------------------+-------------------------------+
 |Sev|C|R|     Facility          |               Code            |
 +---+-+-+-----------------------+-------------------------------+
 where
     Sev - is the severity code
         00 - Success
         01 - Informational
         10 - Warning
         11 - Error
     C - is the Customer code flag
     R - is a reserved bit
     Facility - is the facility code
     Code - is the facility's status code