I am not getting anywhere support.
So let’s try it here.
At home… I am running 2XV2-2s as I try to get proficiency with Cambium.
I have hit a problem that if I saw it in the field… My first thought would be: “man in the middle.”
First the problem.
I have noticed a few problems on my network when trying to use my Roku Video Streamers.
When I open the Vudu app… It takes a while. Appears to hang for a bit then loads. If I select a video that I OWN… And try to play it. It fails 9 out of 10 times. And displays the error screen attached.
When I open Amazon Video… It really hangs for a while. Then an error screen flashes in German for a few seconds. Then it loads the video selections and works REALLY SLOWLY. Nothing fails to play… But it is noticable.
I have also noticed my son’s Roku TV showing an IP address outside the scope of my dhcp-server. (In CN Maestro)
This reminds me of an old hack I saw on routers back in 2019.
The hijacker had set up the routers to use him as their DNS service. And send it’s traffic over his network.
He also had “fake error screens” for anything that involves a password. So you try to go to Amazon… Get an error. Try to log back in… He has your user and password. Netflix… Same thing. Not sure how many other sites… Once I identified it… I submitted it to the manufacturer and it was patched.
Now in my case here…
The cambium XV2-2 s are set up as wireless APs only. They have the EXACT SETTINGS AS MY OTHER ACCESS POINTS. Right down to the channels and widths used.
I have access points from Mikrotik and Ruckus sitting right next to the XV2-2 s.
I log into the switch and select which units get power. All the wireless devices in my home instantly jump between when powered up.
With either the Ruckus or the Mikrotik… These problems do not occur.
I could trouble shoot a wireless issue… But that German Screen and the fact that Vudu doesn’t work, seems strange.
I have tested this about 20 times at this point, and it is absolutely repeatable.
I have turned off the Cambium units for now as I don’t trust them. I have dug through my router and switches looking for anything like a man in the middle hack. Can’t find anything.
As stated… I opened a case with Support. They asked for a support file and Super Admin access to my CN Maestro. I provided this and support confirmed that the Roku wasn’t disconnecting. But they didn’t tell me that they found something in my config yet.
Confirmation Bias, is the death of proper investigation. So I don’t wanna assume it’s something without actual evidence. But I am “kind of stuck” at the moment.
Will turn the Xv2-2s back on today, and jump on the wifi. Need to “start small” and try some trace routes.
So anyone here got any ideas?