Please see the pinned post: About the Vermintide 2 - Technical Support Category to see what information to include in your report.
My friends and I have been playing Vermintide 2 for months without issues. I live in a rural area and use a 4G connection, I had to get a new SIM card for it because of the plans changing (about a week ago) and now i cannot connect to my friends. I constantly get an interal error message saying it is impossible to continue communication. I’ve tried everything I’ve read online to fix it without success. I can switch to a phone hotspot and connect instantly but dont always have access to that phone. My internet still works for all other games. Is there a fix? Please help.