Some have reported issues with QTracker and Windows 8.1 and 10 FYI. The Multiplayer Launchers made by URA for the games will also do what QTracker is doing.
One of the two methods should assist you.
As always if you need help post
Old games(NOLF2) and Game-Service "Qtracker" is desirable to install in compatibility mode Windows XP (right button mouse - properties)
I have Windows 7SP1..
It is impossible easy to create a Game Server "Contract JACK"! With the mod from the URA is also impossible ...
Perhaps this is due to the collapse of service GameSpy in 07/2014…
We have the error "ERROR - Unable to use the selected network service"
Only, If you change the DNS setting on your computer: 220.127.116.11.
Then there is a successful start of the game server "Contract JACK"
In-Game-Service "Qtracker" has compatibility issues with mods URA ...(Sometimes I can not to mark mod in the field "CUSTOM" and not work Co-Op)... But In-Game-Service "Qtracker" supports multiplayer "Contract JACK" without the URA mods... and with URA mods(use Command-Line) too
Game server "NOLF2" does not have this problem...But need Command-Line on field Qtracker... How to play multiplayer NOLF2 with Qtracker read HERE
All-in-One … Install and play Online
Package_Online_1_1 for Nolf, Nolf2, Contract J.A.C.K.
Edited by orion98, 31 December 2015 - 01:03 PM.