I purchased a tp-link extender recently. Model: RE650 (AC2600 Dual Band). During the setup, the extender was unable to connect to the 5GHz band using WPS directly. It was able to connect to 2.4GHz. Hence, I reset it and set it up from the browser successfully for both 2GHz and 5GHz bandwidth. The LED for both the bands showed up. I used the extender successfully for a few days. All of a sudden, the extender stopped detecting the 5GHz band and that light stopped showing up. I did a resest to the extender again and tried the setup once again using the browser but now the 5GHz band isn't getting detected. I tried scanning/directly entering the SSID's but nothing works. The 2.4GHz one shows up but not the 5GHz. If I try connecting to the 5GHz from the laptop/mobile it works fine but the extender isn't detecting it anymore. Any help will be greatly appreciated!