Well as it turned out the resolution was simple and did not require a travel Router after all.
My home router has a guest channel that allows one to give wifi access to guest without giving guest your main wifi password.
My hotspot also has a guest channel to allow WIFI access for guest via my hotspot.
I simply made the SSID and password the same for my home router and hotspot.
Now when at home the RV auto connects to my home WIFI and when on the road the RV auto connects to my hotspot.
This entire issue was precipitated by my Micro Air RV smart thermostat, that can only store one SSID at a time. Because I did not want to reset the thermostat each trip , I needed a way to allow the Micro Air thermostat to connect to wifi without me having to manually set it up each trip.
Using the guest channels has proven to be a worthwhile solution. Thank to all and yes I was made aware of routers that would have worked by a couple of members, but member Gemsworld gave me the idea to rename/share the SSID and password, which ultimately resolved the issue.
