Network license service, Perform Status Enquiry prompts System Error ：10055 “WinSock: No buffer space available”

Issue:

After starting network license service in the LMTOOLS, execute Perform Status Enquiry command in Server Status tab, and the prompt box shows: System Error: 10055 "WinSock: No buffer space available "

Causes:

Insufficient available ports.
You can check Windows default port startup condition with the command "netsh int ipv4 show dynamicportrange tcp", as follows:

As you can see, the Number of Ports enabled by default is only 13977, so the above error occurs.

Solution:

1. [WIN+R], input [cmd] and press enter to go to the Command Prompt as administrator.
2. Modify the Number of Ports by command "netsh int ipv4 set dynamicport tcp start=2000 num=63000".  [start] is the Starting Port, [num] is the Number of Ports.
3. Excute command "netsh int ipv4 show dynamicportrange tcp" again to check the port startup condition: you can see that the Number of Ports enabled is now 63000.
   
4. Restart the network license service, problem is solved.