@noyc said in ProblemwithGTrutracker:
Btw, it worked perfectly until yesterday
More likely to get help via the helpdesk, but you might changing the ports you're using... this is a private tracker, so there's only 1 IP/port your ISP has to block to kick you offline here... with public trackers, there are many many more, so that may explain why some others still work.
You change the port in your client settings.