I think I have solved my stability problem… and since our setups seem to be related, I thought this might be of some help to you - - would you mind having a look at it?
The title is misleading as it wasn’t the “listening port” rather the “endpoint” address that was causing me problems… If by chance, this is a solution to your issue as well, then it would confirm for me that this is, in fact, the problem I was facing… I was hoping to put more eyeballs on the reason for my failure…
In any case, I hope the other post is helpful. Best wishes.
Lib