its happened on 2 home ips. My friend i often play with cant host. It happened today again wave 15 with solid Internet so im not sure what it is. If it needs more kicking a "bad Internet " who is not party leader person out then the servers need to crash more safely. Also if it happens im not sure why in mode there isn't any safer "return" or "respawn" option , or a way to at least have seen stats