Is there a way to port forward to a Guest Network device? Fios-G1100

[HeneryH]

I have a Pi that I setup for a task at my elderly Mother's house.  Rather than change her WiFi credentials I just set up the Guest WiFi to mimic my own personal WiFi.  The reason I did this is that I setup the Pi at my home on my WiFi and when I take it to her house I need it to connect to her network on power-up.  I can only change her credentials or setup guest.

Anyway, now I want to port forward to that Pi.

I think I might be stuck.

[Cang_Household]

I doubt it can do that. I have two solutions for you. First, maybe try to connect the Pi to the G1100 via Ethernet? This increases connection stability also.

Or, buy a cheap access point like WCB3000N (Fios Network Extender Gen 1, $18 on Ebay). You can get two WLANs on this device, one 2.4Ghz and one 5GHz.

If you need instructions to setup the extender, please do ask.

[HeneryH]

The problem is that it is a Pi-Zero-W with no ethernet port.  Only WiFi.

I might need to bring it back home to my house so that it gets on my home network, ssh into it and change the wifi settings, reboot and....  when I take it to my Mom's again hope that I typed the ssid/key in correctly.

Don't really want to set up a separate network at this point but thanks for the option.

[Cang_Household]

No, the WCB3000N will be bridged with the existing network. You are technically not setting up two networks. This option still opens for you if you are interested,