Pacemaker monitor unable to transmit to healthcare monitoring center

@strega7​ response I sent to an employee here.  

 I now realize I may have not been as clear about how this works. When she got the PM 11 years ago, the entire setup for monitoring was sent as a package to the house for easy setup. This included the monitor itself, a USB dongle that plugs into the monitor that has a TP-Link USB WIFI stick and  a TP-Link wireless router with an ethernet port. The TP-Link wireless router, which is paired with the USB WIFI prior to them shipping to us, is cabled directly to the Comcast router. The reason for this is because the monitor itself is in her bedroom so that they can poll the PM during sleeping hours. 

As you can see, the Comcast WIFI network within her apartment is not used at all for this device. That said, I have brought back all the equipment, including her Comcast router, to her previous home and the monitor behaves as it should and reports a successful test to the monitoring center. I should mention that the monitor does not need to pole the PM to run the connection test with the outside world.

@user_wam9df 

Oh that is a much different setup than I had imagined.  Another thing I picked up, is that I think you are moving her comcast router around.  That's interesting because comcast says you always need a new installation when moving, however I know many people have moved (at least over short distances) and have just moved the router themselves and it worked.  I moved dad's router between two ALFs and it worked fine.  However, when I got around to going to the Xfinity store to move his address, they said Dad's router was very old and we shouldn't be surprised if it stops working right after they reprovision it at his new address - and that's exactly what happened so I went back to swap it out for a newer one.  But since yours works at your home - I think that's not the issue here.  

I have seen posts which say that their ethernet ports were disabled.  However I wouldn't expect that to be location-dependent.

If the monitoring service could give you the URL that the device connects to, you could try that on your tablet to make sure you don't have a DNS or similar issue.  

You could also try a test connection with the monitor sitting near the router if you haven't already.  Wi-Fi can be temperamental.

That's all I can think of - sorry.