5ghz suddenly stopped working on Archer C7
The 5ghz band on my Archer c7 suddenly stopped working. It was working fine for ever and suddenly it stopped working. The LED indicator on the router is not lit up for 5ghz band as well. The error says "The 5GHz network is unavailable due to restrictions in your region/country." But I am sure that isn't the case as it was working fine till yesterday night. Performed the following activities:
- Factory reset the router and setup the wifi again - No use. 5ghz band didnt show up
- Upgraded the firmware to the latest available version - No use. 5ghz band didnt show up.
I have set my wireless mode as 802.11 b/g/n mixed. Any help will be greatly appreciated.