The configuration is done by connecting the cable to laptop and router, the IP address is in the small manual that is in English.
The adjustable language in the router itself is English or Chinese, possibly there is for nen firmware update sometime when I found out the manufacturer.
No big jumps with the device expected but for the price NEN good router, Repeater, Access Point.
Addendum: The unit was now about a week in use, there was an ongoing disconnections and my Android device (tablet and mobile phone with each current 4.4.2 software) could be partially or not at all set connect to the router as a repeater, thus the device is useless Firmware updates were not after you names by chance at Google finally found the manufacturer at the time
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Smooth bad buy, I'm going for a higher-quality equipment at Amazon look of AVM where there is better support