thanks for reply.
But that’s is exactly what I did. Had OS on one network and use the phone on another network. two different routers, ISP etc.
I did manage by now to get the remote access working on one router but I want to cancel the subsription with this ISP, because its dead slow.
On my new subsription, I have an older DD-WRT router (Netgear WNR2200) and I cant get anything to work here.
I can use the app etc on the same network, but not remotely.
Somehow it seems I can forward the ports. Whatever the port.
I am puzzled. Maybe its the router itself.Not the youngest.
If you have any ideas, please let me know