Invisible Aircraft online

[Kupsised]

Been having a bit of trouble, and was wondering if anyone here knew the solution.

Playing IL2 4.9 online with my brother, and we're finding that it often turns out the one of us is invisible to every one else. We're not on the same internet connection, and not even in the same country, but it can be either one of us who's invisible to the other and everyone else. Sometimes it doesn't happen for ages, other times it'll happen all the time. We've tried quitting and coming back in, but that doesn't solve anything. Tried multiple different aircraft, airbases, markings, servers (that sometimes solves it, other times it doesn't). We're both running without firewalls etc. and using hyperlobby to connect.

Anyone had this problem and/or know how to solve it?

It'd be great if they do. Also, aside from invisibility, weapons don't do damage to other players etc. almost like you're not there. Also makes me wonder if there are people having this problem who are unaware of it because they're not in contact with one another.