When logged into more than 1 client (not just single IOS device) IOS notifications come with bigger delay (about 12-15 seconds, but when IOS it the only one client signed into account it's about 0-3 seconds). Issue occurs even if other authorized clients are offline/not running. Not tested with Android. When using web or other desktop clients as secondary inactive clients notifications behave in same way. I suppose it's improperly implemented 10 second delay somewhere in push-service team.
Suggested solution: remove notification delay if other clients are inactive. Or fix delay if it's not the intended behavior.
Steps to reproduce
To reproduce:
Log into account from IOS device.
Log into same account from Web or Desktop client.
Shutdown the application (second client) so it goes in inactive/offline state.
Wait couple minutes and ask a someone to send you a sticker for example.
Measure delay of receiving notification. It's about 12 seconds in my case.
Logout from all clients except first IOS client.
Wait couple minutes and ask a someone to send you a sticker again.
Measure the delay. It's around 0-4 seconds in my case.
This issue has persisted since last year or even longer but it is still NOT FIXED! WHAT THE HELL IS TELEGRAM CEO DOING?
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This sounds like a feature instead of a bug, telegram sends notification to the active client first, and because desktop clients can use more energy they can talk with server more frequently. Are you sure your desktop client is really offline , or only minimised and running in the background ? Use Ctrl+Q to fully close it. It is also known that when disconnecting internet before closing a client, the server will not be notified that the client has gone offline, and the client will be marked offline after a 15 minutes timeout.
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Deleted Account
November F, just to be completely sure i checked this once more. Logged into desktop client, turned it off completely, waited for 30 minutes just to be sure and notifications are still delayed on iPhone for about 10-20 seconds. I've done a lot of debugging and testing before submitting this ticket and issue is real. I would like to ask people who experienced this issue to test it themself and submit their feedback here. No pointless raging/arguing please.
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Deleted Account
Issue still persist on latest IOS client available as of 5th October 2024, iPhone 15, latest IOS. Is it only me who notices the issue or what?
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Are you sure your desktop client is really offline , or only minimised and running in the background ?
Use Ctrl+Q to fully close it.
It is also known that when disconnecting internet before closing a client, the server will not be notified that the client has gone offline, and the client will be marked offline after a 15 minutes timeout.
into desktop client, turned it off completely, waited for 30 minutes
just to be sure and notifications are still delayed on iPhone for about
10-20 seconds. I've done a lot of debugging and testing before
submitting this ticket and issue is real. I would like to ask people who
experienced this issue to test it themself and submit their feedback
here. No pointless raging/arguing please.