Connected / ICE not done / No audio

Hello, i have this random problem which is difficult to find.
I am connected to janus all day, and using it, and next thing what happens i have calls without audio.
1: This is not a network problem (checked)
2: Not a device problem (microphone etc)

I have a status like this in my peerconnection:
connected / ICE not done
Outboud RTP / true /0 /0 (instead of rtp packet count)
Transport new / 0/ 0
image

And well i can call and i dont have rtp streams / ne audio.
If i disable peerconnection and enable it OR wait it the next calls will be OK

The stun server i use is in public > Firewall OK
The janus is in public > Firewall OK
I dont have a reistricted internet, or this kind if network problems.

Any ideas what kind of issue i can face here ?
Thank you