Original Moto X can't connect to 5.0 on RT-AC86U

[marnold]

Hi all,

I just bought an RT-AC86U as a replacement/upgrade from my RT-N66U. So far I'm very pleased with it. 5.0 range is significantly better. The only problem I've had is that my wife's original Moto X will not connect to the 5.0. It will connect to the 2.4 just fine. It is supposed to support wireless N and AC. The Android settings will initially say it is connected (although the wifi indicator never shows up on top of the screen). Then it just disconnects and sits there.

All my other devices (Moto X Pure, Asus Chromebook Flip C302CA, Roku Streaming Stick+, Asus USB-N53) connect to the 5.0 just fine. Obviously since it will connect to the 2.4 it's not a huge deal, but I wanted to try to debug it before my kids come home from school in case it would affect any of their devices.

I'm on the latest stock Asus firmware.

Thanks in advance,
Matt

 

[marnold]

FWIW, I upped the log level to 7 to see if I could find anything unusual. With both a successful (2.4) and unsuccessful (5.0) connection to the router, it adds the device's MAC address to monitor list. The difference is that with a successful connection you can see the DHCP request and acknowledgement in the logs. With an unsuccessful connection you cannot. So the router is at least acknowledging the phone's existence on the 5.0 but it never gets an IP from DHCP.

 

[ColinTaylor]

Try setting the router's 5GHz band to a "safe" setting, channel 36 - bandwidth 20MHz, and see if you can then connect.

 

[marnold]

Try setting the router's 5GHz band to a "safe" setting, channel 36 - bandwidth 20MHz, and see if you can then connect.

An excellent idea. Unfortunately it didn't help. That's a very old phone that hasn't received a patch in a long time. Thankfully it does work on the 2.4. Having said that, the 5.0 range on this router is remarkable.