Richard, I too have had the exact same issues with Dynons WiFi connection, literally word for word. Sometimes I would get “wrong password“, sometimes “unable to connect”. I thought there may have been some sort of disruption between the two WiFi dongle‘s inserted in the USB ports on the back of the HDX units, so I bought Dynons usb extensions and mounted them through the panel up front were there would be no possibility of electrical interference. Still no success-
Sometimes wifi connected and I would lose it right away, sometimes on a one or two hour leg it’ll lasts half of the time. On a few flights it didn’t drop the signal at all, so I felt like I had to figure out what I did different that day. Well, I quickly came to the conclusion there was nothing that I could do to predict it’s intermittent nature.
One note- I have noticed that when the Wi-Fi signal goes away the traffic avoidance information shown on the HDX also becomes intermittent or nonexistent. If you’re having this problem pay very close attention to that…
I too have called and spoke with Dynons technical support team, which I have to say are friendly and knowledgeable, but had no info on a remedy. I have bought new Wi-Fi adapters, changed passwords hundreds of times and checked wiring for loose connections or possible malfunctions.
During a recent flight I became so distracted trying to get it to reconnect that I found myself in a “near miss” situation, also no target shown, wifi dropped…After that I was DONE!
So, I decided I would just buy a portable ADSB unit, at this point at least I can stop worrying about this issue. I now have the information on my iPad that I need and my logbook and stored flight tracks work perfectly. Also, If it appears that the traffic avoidance guidance has been lost on the HDX at least I can verify it with the back up …
So…for about $500 I now have reliable ForeFlight and reliable traffic guidance shown on my IPad…
Hopefully Dynon can come up with a solution to this problem quickly…
-I must admit It’s really an unfortunate situation though, after spending a bunch of money on Dynons equipment, these nagging, aggravating problems tarnish my opinion on an otherwise really well equipped and useful product…