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Recentely I had to reconfiguer my TP-Link TL - WA860RE 300Mbps WIFI Range Extender with AC Passthrough.
I've managed to do it once using http://tplinkrepeater.net or 192.168.l.254 but now I simply cannot access either.
The http://tplinkrepeater.net shows a message




I've download the app on my phone but it didn't find the device.

How can I just login into my account and config again the extender?
Many thanks in advance for you help!