HIGH PING & PACKET LOSS EVERY ALTERNATIVE MATCH ( WIFI IS FINE )

Ok, so I regulary play the game. I often get 50 ping with no packet loss at ll. But recently every few matches that I play suddenly beofre loading into the match it shows in my performence display that my ping is 400 and loss in 50 and automaitcally diconnects me from the match and it results in a 10min time ban each time. Also my wifi is absolutely fine, wiht no issue. The issue is very random. I have tried all of the steps given at the EA Help website, like restarting router, check server status etc.