Comment 83 for bug 1861936

I'm unable to reproduce this issue. I have not fiddled with IPv6 yet due to my lack of knowledge and (IMO) unclear instructions in previous comments. I've pushed data through a wireguard tunnel while loading the Pi (because this sounds similar: https://github.com/raspberrypi/linux/issues/3782 but I've just realized, that that issue is filed against 3B and not 3B+, duh!). I've also tried the instructions from comment #43 but my test completes multiple times just fine.

I'm afraid there's not much I can do without *clear* instructions on how to reproduce this in an *isolated* environment using an *Ubuntu* image.