Can't receive messages after returning online until relogin

[qoqobolo]

Bug Report

Problem

If the user enables airplane mode, closes the app, receives messages while offline from another user (that goes offline/closes the app after sending messages), re-opens the app, and disables airplane mode, they won't receive the messages until reopening Status.
The issue is reproducible with these steps in ~70% of cases.

Expected behavior

Can receive messages right after returning online

Actual behavior

Messages are only received after reopening

video_2022-01-31_17-58-50.mp4

Reproduction

1. Start a 1-1 chat between UserA and UserB
2. UserA: close the app
3. UserB: turn on airplane mode and close the app
4. UserA: open the app > send several messages to UserB > close the app
5. UserB: open the app > turn off airplane mode (no messages) > reopen the app

Additional Information

• Status version: nightly 31/01
• Operating System: Android, iOS

Logs

UserA: geth.log

[rasom]

@qoqobolo
I can't reproduce it using iOS simulator as A and iOS real device as B. Is it reproducible only on Android devices?

Also regarding steps 3 and 5: what if you don't close the app but just toggle airplane mode, do you have the same result?

[qoqobolo]

@rasom it's reproducible for me both on iOS and Android real devices (just double-checked with UserA - Android and UserB - iOS).
Logs for iOS geth.log

Regarding steps 3 and 5: hm yeah, I tried to reproduce without them but it was not successful last time.
Now I tried about 5 times on Android and iOS, and the result is:

• can't reproduce it on Android without steps 3 and 5 at all
• can reproduce it on iOS without steps 3 and 5 in 80% of cases

[rasom]

Start a 1-1 chat between UserA and UserB

@qoqobolo do I have to create a new 1-1 pair for each test or I can skip the first step on the next iteration?

[pavloburykh]

Hey @qoqobolo @rasom I'm reproducing the bug following given steps when using Android as device A (receiver) and IOS as device B (sender). Attaching video and logs.

telegram-cloud-document-2-5465577855343662054.mp4

geth.log

[cammellos]

This is due to the slots in the p2p server being full and therefore not re-dialling the server.
Looking into a fix

[cammellos]

Should be fixed in #13065 feel free to reopen if necessary