Talk doesn't work since upgrade from 18.0.3 to 18.0.4

Since the update on last Tuesday Talk doesn’t work any more across networks. Only within one local network it still works.

I use the default TURN server

in version 18.0.3 it worked fine across different Networks.

I tried it in two different unrelated NC installations, everywhere I get the same error:

“Could not establish a connection with at least one participant. A TURN server might be needed for your scenario.”

I posted a bugreport here:

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I found out, that on some internet access connections it works through the net, without turn server, just the default stun server.

So I guess, that it could have something to do with the IPv6 connectivity of your internet access.

I created my own turn server and added it in the settings, now it works fine, so it was no problem with the new version