Fightcade: Cannot connect to other players, spectate or watch replays only on my PC


a couple of months back i’ve benn unable to connect to other players nore spectate or watch any replays it just shows a black screen. I can log in to Fightcade, view the lobby and see other players in the list and also play offline. i tried restarting my router, PC, reinstalling Fightcade nothing works…but on the same network via wifi i don’t have these issues on my dads laptop…i can connect, spectate & watch replays, so my network is fine its just my PC…my ports are forwarded too on my PC…Please if anyone can help me out that be great.