I have an app that lives on 2 Android boxes and on my mobile phone.
A couple of days ago the app stopped connecting to the internet via wifi. (Up until then it was working fine for over a year.)
The devises are all working ok and all other apps living on them connect fine.
If i connect to the internet using my mobile provider as a hotspot, guess what! the app works!! So by process of elimination we can conclude the the fault is not with the app - it has to be with my Plusnet connection.
Having done some internet investigation, it seems as if the answer would be to clear/refresh my DNS cache via the Plusnet router.
Oh, and i have cleared cache and memory cache for the app and the devices concerned and still no joy. Which is leading me back to the Plusnet router.