@Cookie, glad the settings helped.
I just rechecked my WRT1900AC setup notes, and I forgot to add the setting for the 2.4GHz radio:
- Select "Allow legacy 802.11b rates" for 2.4GHz devices such as some Android phones to be able to authenticate to network.
I was also having issues with my 2.4GHz Android devices not connecting, and found this tip on the forum here:
where the user claimed,
"They don't use 802.11b rates but without it no connection, with it they connect straight away, just no idea why this is needed..."
Cheers,
2Torr