Number of ports required for a floating license

Thank you for your reply.

I have confirmed that the ports are open.

Since the "Current license" could not be recognized using a single port,I opened three ports.

SERVER　servername　 mac address　10000

VENDOR alterad C:\FLEXlm\alterad.exe　PORT=10001

VENDOR mgcld C:\FLEXlm\mgcld.exe　PORT=10002

I have confirmed that the ports are open.

Since the "Current license" was not recognized with just one port,

I opened three ports.

The "Current license" was successfully recognized, allowing Quartus to operate normally

and enabling the compilation to start.

I plan to continue using it this way, but do you happen to know why more than one port was required?

I would appreciate your response.