There's not much more I can add I'm afraid. This appears to do with the Internet, not Construct. I can't be held responsible for the way the entire Internet works.
I just feel that if you have this big feature that two of your engines rely on that is just susceptible to not working at will and just has to be accepted... then is that not kind of a problem?
I mean not only has this not been an issue with some of these people I've tested with before, but I'm just supposed to tell the people I'm working with, "Well, this engine is unreliable so if we want to use multiplayer we either have to work with another engine or accept that it sucks."
Not to mention that I was hoping that I could at least get some kind of response to my question about the ideal internet configuration, so that we didn't sink all this time into a game that doesn't work and maybe be able to do damage control somehow? But then my question is ignored and the post is moved to closed bugs.
I'm just trying to make the best of a bad situation and frankly, after all this time with Construct 2 I'm a bit peeved at the attitude that's been used since I've started using the engine. It sucks that I have to look at all the people I introduce C2 or C3 to and say, "The engine has some big issues and you can't really rely on the developers to deal or fix with them."
I know this seems like an overreaction to such a minor thing, but I've been peeved at this attitude for years! And I'm getting thoroughly fed up when I have to say "your best bet for this project is using another engine" because C2 and C3 have so much potential! And so many people get turned away because of things like this, RexRainbow left the community because of this kind of attitude! The primary reason I haven't bought into C3 yet is because a very large of the great plugins that made this engine worthwhile just aren't coming to C3 anymore because Rex left. There's a whole forum thread with people who also feel that way about C3!
It's just frustrating to have been a part of this whole community and then watch as all your peers leave because there are better engines and better developers, and to have stuck with C2 and C3 for 7-8 years and not only have to expect that filing a bug report will do me no good, but that I'm going to have to accept that this massive feature just will not work sometimes... despite other engines being able to pull it off. It is an understatement to say that this is incredibly frustrating to work with.