A client of mine if having major issues connecting to his mail server via ZeroTier with using Cellular data.
A few details;
The VPN works fine with WIFI connection.
Client cannot search the internet on cellular with the VPN connected.
Cellular works fine without the VPN connected.
The device is a Samsung A21.
Provider is Telstra.
I have checked Cellular data is enabled in Android settings.
Client has removed, re-installed app & re-added himself to the Network.
Client is approved in Zerotier Portal.
Clients status on Zerotier is all as expected.
I’m troubleshooting this remotely which adds a layer of difficulty.
If anyone has any ideas about this or can identify something I have missed that would be great.