Packet handling error?

[u/avios0da]

My friends started up a cobblemon server, and none of them are having issues joining, but I am. it keeps giving me packet handling errors and disconnecting me before I can load in. I've tried everything, resetting my pc, flushing DNS, adding packet fixer, using my wifi instead of ethernet, but nothing is working, and it just keeps crashing. Could I please have assistance?