UPnP send/receive on RBR850 stops at MAXINT

Just for completeness, I've given up. I'm probably being a bit of a **bleep** about this but I just don't like NetGear's attitude about what for me is so clearly a data type bug, like I've seen many. What happened after I submitted the bug was that I got a mail with a request for a LOT of information (of which 40% was already in my original bug report). I then got the instruction to install the firmware again, even though it was the same version. Fair enough, it could have been a faulty install. But what they wanted me to do next is to do a clean install and not use a backup. I know I do that, configure all again from scratch to prove it is STILL broken en then load the backup again but I just feel this case is not being treated correctly by NetGear. So I just sent them this:

I’ve thought about this and let’s just close the ticket. I just get annoyed thinking about this bug and postponing. Reason being that it’s so obvious for me that this is a bug and has nothing to do with a backup (data) that I just don’t want to spend the time on this, losing hours on executing useless instructions to make it reproducible. I already spent too much time on it and even went out of my way to provide you a way of querying UPnP yourself. NetGear is clearly not interested in solving it. For me the logical response would be that you guys set up an Orbi yourself and query the UPnP parameters, potentially showing me that it works FOR YOU instead of making me go through more hoops. It just feels to me like this approach shows the wrong attitude on NetGear’s end. Nothing personal, you’ve been friendly enough and I’m sure you’re just following orders. Me for my part will just simply not use UPnP and I know I shouldn’t be getting a NetGear next time. 

I'm just leaving this here for the next poor sucker that wants to submit a bug to NetGear and is willing to be their unpaid debugging department.