It is possible to fix this. I was SURE my wifi chip had burned out. Everything I tried failed. I couldn't 2.4ghz to work. Here's how I fixed it.Search for FW_RT_AC68U_30043763626.trx and load it using the ASUS Recovery utility. This can be difficult so look online for various posts on how to use the ASUS recovery utility. This allows you to do an online update to the router firmware that should fix everything.IMMEDIATELY after you set up the minimal to get internet access, check for upgrade. It should be able to find an upgrade from ASUS. Once it upgrades, turn off the router, hold the WPS button and turn the router on. Keep holding it until the power light flashes rapidly (about 10+ seconds). This will factory reset. Rebuild the router config from scratch, don't use an old saved config file. You should be back up and running.I know this is too brief but I can't upload files and links are unreliable long term.
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