Unable To Obtain License 5677 . License Request For -

If basic steps fail, you need to dive deeper.

If you are the license administrator, open the .lic file in a text editor. Look for lines like: Unable To Obtain License 5677 . License Request For

SERVER this_host 001122334455 27000
VENDOR vendor_name
FEATURE my_software vendor_name 2024.0 01-jan-2025 10 SIGN=1234567890

Common mistakes:

Floating licenses use specific TCP/UDP ports (e.g., 27000-27009). If a corporate firewall, Windows Defender, or a VPN is blocking these ports, the request packet is dropped, triggering a 5677 error. If basic steps fail, you need to dive deeper

Run on both client and server:

lmver <binary>

Ensure feature 5677 version on client ≤ version on server. Ensure feature 5677 version on client ≤ version