Have the same issue. Packet Loss completely unplayable. 5 secs good, 5 secs bad. The in game graph is like a steady heartbeat. I've tried every possible fix on Youtube reddit and even here. I've sent two support requests. Nothing but crickets. Only upside is that BF6 seems to run fine. i9-9900k with 9060XT, and 16GB RAM. On occasion I get either a good connection, or a good server, or whatever it is and then I might get to play for a couple of hours. But its like 1 try out of 10 I can find that connection. Everything worked fine before upgrading to Win11 and the new 9060xt. Every other game works fine, and packet testing shows no problems.