Accessing and using Microsoft Teams on smartphones and tablets across platforms
I have the same issue, and have had it for close to a year.
I even got a new phone, and the new phone did exactly the same thing.
Tried all the solutions, and nothing works.
Sync works perfectly fine when on Mobile Data, but as soon as you turn on Wifi, no matter what Wifi it is, it will not send or receive any messages.
I have tried everything I can think of, and it simply will not work with Wifi, on 2 mobile devices, and on multiple wifi routers, same result.
Something is actually wrong with the App - I cant see how it can be anything else.
Old phone: Samsung Galaxy S10+
New phone: Samsung Galaxy S23 Ultra