Friends cant connect to netplay

[Brendong]

(04-28-2015, 01:31 PM)NKF98 Wrote: Does your netplay still work on the 4.0-652? Do you have memory cards disabled? Are you all using the same version?

Yes to all of that. 4.0-652 still works fine but traversal server on the new version will not. Mem cards are all disabled and were all on the same version of dolphin. We also tried version 4.0-6033 and that didn't work either. Any help would be appreciated