Failed to send FCM PUSH

[Tyler.Calhoun]

Hi,
in my log I find a lot of error messages "Failed to send..."

This only affects Android devices. Iphones do not cause errors.

What could be the reason for these errors?

Thanks

 

[JohnS_3CX]

Are you on V18 Update 4 or older?

 

[Tyler.Calhoun]

Sorry!
V18 Update 4 Build 965

 

[JohnS_3CX]

And are your Android devices that appear in the list having any issues receiving incoming calls?

 

[Tyler.Calhoun]

No, so far I have not noticed any problems. The problems seem to occur only sporadically.
Now I am afraid that sporadic calls are lost.

Do you have any idea how these errors can occur?

 

[JohnS_3CX]

Maybe if your system has trouble contacting the Google PUSH servers, usually might happen if you have a strict firewall which sometimes decides to block traffic while other times it lets it pass through.

 

[ThomB_3CX]

Hi @Tyler.Calhoun

Thanks for your feedback.
Could you kindly send us the pbx logs for your machine please via PM to further analyse your problem?
Just follow the steps mentioned here https://www.3cx.com/docs/collecting-logs-for-3cx-support/

Thanks

Thomas Borg

 

[ThomB_3CX]

Hi @Tyler.Calhoun

Thanks for sending us the logs required to look into the issue
.
After further investigation, we concluded that this most probably is a connection issue
When trying to send a push message to https://fcm.googleapis.com/fcm/send, the server closes the connection, or perhaps something in the middle (bad internet connection).
In our logs, we got an exception: SocketException (104): Connection reset by peer which shows this.

We are limited in the ways to improve on this