Android Question WIFI -> Mobile data = Connection Timeout

[Andrew (Digitwell)]

I am having a connectivity problem with a particular app.

If the app is started on Wifi and whilst the app is running, the phone switches to mobile data,
all HTTP calls, (job.poststring, job.download) communications, Firebase Notifications etc timeout with a socket connection failure

But, if the app is started on mobile, in the exact same location, then all if fine.

I can't work out what is wrong here, the data connection at the location is not great, but it does work.

Does anyone have any clues as to what is causing this?

Test phone are a Huawei P10 and a Sony.

Thanks

 

[Erel]

What happens when you send a new HttpJob request after switching to mobile?

 

[Andrew (Digitwell)]

The request times out, as if there is no connection.

 

[Erel]

I've tested it with the attached simple app. It continued to work when I switched the wifi on and off.

 

[Andrew (Digitwell)]

Thanks Erel,

I will try this at the location that was causing the problems and let you know.