Connection failed when activating Alarm in ivms with fw 3.3.4

[NVR]

So I have two NVRs connected to the same IVMS 4500, one is an older firmware 3.0.8 which alarm activates without issues, however the new recently installed NVR with 3.3.4 NVR continues to give a connection failed message.

The issue seems to be fw sensitive and wondering if anyone has a fix around this.

 

[NVR]

Ok some updates, my perception was false and it is not fw dependent.

I added a friends 3.3.4 NVR to my ivms and attempted to turn on Alarm Notification and got " connection failed" wifi and 4g
3.0.8 which has been added for over a year can be turned on without issues.
My own 3.3.4 also got "connection failed"

I deleted the app and reinstalled

Now can connect to friends 3.3.4 NVR and can get alerts, he also deleted the app and reinstalled and can now also connect to his own. Couldn't before the reinstall.

But still continue to receive connection failed for my own NVR. He also cannot connect to my NVR and has a different IOS.

Still not sure whats the cause but it is not fw dependent or at the least it is not fw 3.3.4 and also not IOS version dependent.

Deleting and reinstalling the app resolved the issue for one NVR but not the other. Network settings are identical.