I believe I understand what you want to do. and that is to assure the photos you uploaded from the SD card are now on the MPW are there. Good idea, but you are getting a bit confused. You do not need an internet connection, wi-fi from home network, or any hotel or from anywhere else.
You have a wireless portable drive with its own built-in wi-fi. So, if you want to see the photos right away or at any time afterward you connect your iPad to the MPW internal wireless signal. Start up the my Cloud app on iPad, and go into the upload folder likely named SD card Imports and go look at the photos in it… This is the whole intent of the MPW; no other wi-fi needed other than the drive’s own internal wireless signal.
The main reason set up had you connect the internal wi-fi is because the internal wi-fi is stand alone, and if you join it with your home network signal you now have internet signal so you can check your email and other stuff. But, again, you do not need that to examine and use the contents on the MPW.
IMPORTANT: Have your password for the MPW with you you are asked by device for it when you connect to your MPW signal or you will NOT connect. I suggest you connect to the faster 5G signal you see and not the slower 2,4G. Also, get the complete user manual if you don’t have it on drive or downloaded.
In addition, practice connecting at HOMF, by having the MPW off, then turn it on fresh. Now, quickly get into iPad wi-fi connections and locate and connect to the 5G connection. Do not connect to home wi-fi.
Once finished, turn off MPW, and the iPad will disconnect from it and return to being connected to your home signal.
Any questions, just ask.