Need better respect error
Fast solution, but the app and/or device should have expressed the issue why it was failing the wifi sync. The wifi sync was working, but device got error as no account data space - data needed to be deleted.
In my case this happened as wifi when down, for several days, the rule alerting when no contract with device filled up data. Once wifi fixed, device kept failing to reconnect - but gave no good reason why. - seems like netword or PW issues - I needed tech to explain.
The app could have called this out as the attempt to reset/resync wifi, before the attempt was.made..