Homenetgeek
Occasional Visitor
I was in contact with an Edimax support engineer and can present you the solution to access the upper Bands on all Edimax Pro APs.
1. Install newest Firmware on your CAP1200/WAP1750 (should also work on newer Models (OAP1750, CAP1750))
2. Login to your AP
3. Change URL to http://<ip of AP>/engineer.html
4. Login with User: engineer Password: engineerpwd
5. Activate Band 2 + 3
6. Profit!
Awesome, that appears to work. Thanks for sharing.
I've seen that you can enable engineer mode but can't see what effect that has.
There is also the CE Adaptive mode. Not tried that yet but maybe it forces CE Adaptive on? Still not quite sure what this feature does.