If you are coming from a 380 firmware it may be best to do a factory reset/initialize then reconfigure the router. I initially did an upgrade from 380-7743 and noticed some hesitation in performance and when accessing the web GUI. Initialize and manual setup fixed that. All seems to be working well including file transfer from my USB2 1TB drive.Installed and find that ASUS RT-AC66U B1 Firmware version 3.0.0.4.382.18881 admin console doesn't play well with browsers. Top and side menus missing on Wireless page.
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