TestUDP is failing for some developers

[mspang]

We've had multiple reports of TestUDP failing for some developers (on Linux).

Also, one of the reports went away after rebooting.

[kghost]

I'm having the same problem when in the office, but can't reproduce when at home. I guess it is related to the network environment, Maybe decided by whether ipv6 is assigned by AP.

[mlepage-google]

Happening for me too, at home, on Linux.

[mspang]

Is it a deterministic fail in these cases or does it pass when you retry?

[mlepage-google]

It seems to always fail when I run from scratch, but yes it passed on subsequent runs. (Probably because of less contention for the port.)

@kghost made a PR which seems to fix it (not linked to this issue, I'll link it now)
#9692

[mspang]

Ok, just a port reuse issue - that's what I thought.