failed to connect to host server

hi
i recently got that new router which supposed to be faster and better than the old one but since then i get this message error when i join any map in any server .the game opens normally and get to ch and rooms but when i join it loads to 90 or 100 % and go out to the lobby with failed to connect to host server. i changed the dns closed firewall set new inbound rules permit the game deleted it and redownloaded but still the same issue.the weird thing is that it works normally on my old router wifi and with the new router hard wire but not on its wifi. can someone help ?