Miraculously, I don't get that Error 461 anymore.
I have no problems at all if I connect directly to freenode.

ATM, I have the problem that if I connect to my bouncer (ZNC) that provides playback for 2 channels, the app hangs upon connecting (as mentioned on IRC). This happens even if there's just a few lines to load.
Most of the time, a message appears: IRCchatter does not respond. Do you want to close the app? - If I press no, most of the time the app stays unresponsive, sometimes loads some lines, sometimes the message pops up again and this kind of gets into a loop of that. I made a video but there's nothing more to see than what I described.
Only when I'm very lucky, it works.
I 'm under the impression that it generally get's worse when I'm connected over wifi.
No open mode, inception or off-wall tweaks here.

Edit: Also, the app does not establish a web-connection on its own, has to be done manually before.

Would be a happy tester for any updates. Is there any log I could provide?