Nlm11.18.0.0-ipv4-ipv6-win64.msi Apr 2026

netstat -an | findstr ":27000" Look for 0.0.0.0:27000 (IPv4) and [::]:27000 (IPv6). 6.1 Windows Service Control net start "FlexNet License Server" net stop "FlexNet License Server" 6.2 Manual Start with Debug Logging Stop service first, then:

SERVER hostname 12:34:56:78:90:AB 27000 VENDOR adskflex port=27001 USE_SERVER For explicitly: nlm11.18.0.0-ipv4-ipv6-win64.msi

New-NetFirewallRule -DisplayName "FlexNet LMRD" -Direction Inbound -Protocol TCP -LocalPort 27000-27009 -Action Allow New-NetFirewallRule -DisplayName "FlexNet Status" -Direction Inbound -Protocol TCP -LocalPort 2080 -Action Allow If IPv6 is present but broken, disable ISATAP, Teredo, 6to4: netstat -an | findstr ":27000" Look for 0

(run as admin):