Persistent incoming server network errors on Wi-Fi only.

[RDHarris55]

I've read numerous posts about the topic of persistent incoming server network errors. This just started to happen to me in the last week or so...and only on Wi-Fi. I'm using a Galaxy S7 with latest Android. I'll see the error, turn off Wi-Fi, then aquamail retrieves mail just fine. The router has updated firmware and has been restarted, the phone has been restarted as well.

Any ideas?

[StR]

Is this your own WiFi network?
What is the error message?
What is the mail provider?

[Kostya Vasilyev]

The app's networking code doesn't care if it's WiFi or LTE or HSDPA, etc.

Network errors are always "genuine" - indicating that yes there is problem.

Please note that you may be able to browse the web (for example) or access email at _some_ mail providers but not others.

[MarkMessinger]

Since the update to 1.15.0-916 I am getting this (to me) never-before-seen error message. I get it primarily, or possibly only, when I'm connecting via wi-fi. These are at several locations and with wifi access points at home, work, and other locations where I frequently connect, with no problem.

As soon as I take my phone off wifi, AquaMail connects and does it's business quickly.

I am connecting to Gmail, via IMAP, and I'm aware of no changes in their connection requirements.

This all said, roughly about the same time I acquired the AquaMail update, my OnePlus 5 phone was updated to Android 8.1.

[Kostya Vasilyev]

There are no networking code changes in 1.15 and no diff in pro vs. free.

There are other "moving parts" here too - such as the update to 8.1.

( btw - no issues at all on a Nexus 5x with 8.1 connected to my home WiFi )

- what is the actual error ("persistent network errors" get triggered after 12 hours of consecutive network errors)?

- does it depend which WiFi it's connected to? maybe office WiFi specifically, which may be blocking access to email?

( and the IT people may have put a policy into place without telling everyone all the details )

- is the app excluded from Android's Doze Mode? Please see the FAQ look for "app not checking mail" near the end.

And finally, feel free (maybe after checking Doze Mode) - to capture the error in the app's debug log (detailed linked below, in my signature).