Forum Discussion
VPN issues
All devices and home network are good. Signal strength is 2 bars (weak, but functional). Spouse needs to set up VPN to work from home, but even IT from the office could not get VPN to work via T-Mob...
I was able to solve my VPN issues using the guidance in https://amithkumarg.medium.com/resolved-t-mobile-home-internet-vpn-issue-2f5ca594c23e. This was on a MacBook + Cisco AnyConnect. I don't think I needed to change all of them, but I set the MTU on four network adapters to 1350:
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1350
utun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1350
utun1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1350
utun2: flags=80d1<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1350
Assuming this is something that can be fixed at the router level, I really hope T-Mobile pays attention to this thread. Not every user is going to be tech savvy enough to do this on their own.
