Packet loss

My game only experiences packet loss when playing ranked with my friends. I can play solo any mode including ranked and my game is fine, I can play any mode beside ranked with my friends and I don't have packet loss. However when I try to play ranked with my friends I experience packet loss in the 70s. I do not have this problem with any other game and this just started happening this week. I have reset my router multiple times, checked all connections and this issue only occurs in ranked with premade parties. Can anyone help me with this issue.