Thanks for the reply;I didn't make my question clear.
At present I have a conventional router with an ethernet connection that I can plug the camera into and then see on the network (locally). The router of course can't connect to the internet because the line is down, (physically). With this local connection I changed the SSID to that of the 4G router (then disconected the ethernet cable) the camera appeared on the 4G router's local network and all was well. The 4G router has no WPS button and no ethernet socket.
Once my line is back I need to return the 4G router to Orange France. It is my intention to purchase a 4G router (in the UK) and replace the conventional service which is very slow, unreliable and for a holiday home expensive. I could end up with a new 4G router and no other means to connect to the camera therefore I couldn't modify the camera SSID settings to match the new router.
So I guess the question is if I have a router with no WPS button and no ethernet connection can I connect to the camera by other means? I was hoping I could possible just plug it into my laptop and make the SSID changes but didn't want to risk trying it without advice.
I could take the camera back to the UK and set it up on my home network but the purpose of the camera is to monitor an empty house, mainly for power interruptions, so I don't really want to do that.
Hope that is clearer. Thanks for your advice.
PS I have looked at the manual and it only covers connection to windows, IOS and Android