I can't set up a VPN connection over 5G on my iPhone 13 (mini)
I've used both providers (Vodafone, T-Mobile) and both offer 5G, but if I'm connected to any of their networks I'm not able to set up a VPN connection. This happens when I try to set up a connection via Express VPN and it happens with NordVPN too.
I've already tried all available protocols (Lightway UPD / TCP and IKEv2) and none of them work over 5G.
If I switch to a WiFi connection both providers are able to set up a VPN connection without any issues and via all mentioned protocols.
I've also tried switching the VPN on and off in the system setting. Didn't help.
So, it's not the SIM-card provider and it's not the VPN provider.
Now I'm in doubt if this is an iOS issue or a 5G issue in general.
iPhone 13 Mini