Working with T-Mobile 5G internet at home doesn't work with Meraki VPN

[jrosewitz]

Working with T-Mobile 5G internet at home doesn't work with Meraki VPN.  Apparently, T-Mobile does a port translation of UDP port 500 to UDP port 1058 downstream from the client PC and when it hits the MX84 the connection gets dropped.  We see the traffic coming from the client IP address but from port 1058 and not port 500.  Anyone out there figure out a workaround for this issue?  T-Mobile has not been helpful.

[Georg Pauwen]

Hello,

I have done some searches, and it could be related to T-Mobile using IPv6 as default. According to the thread below, you need to change the APN settings and use an IPv4 profile as default. I have not tested this, so it is pretty much a wild guess...

https://www.reddit.com/r/meraki/comments/lxu8qt/tmobile_users_and_meraki_client_vpn/