Tp link range extender, all the devices does not connect

Nov 2, 2018
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Recently my mother lost the range extender, so we replaced it with a reserve one TL-PA4010, the previous one should be the same model. The problem is that all the adapters don't work and doesn't connect with any device, laptops, smartphones, tablet, you get the idea.

Extra info that might be relevant, I plugged the cable in the 1-4 (first one specifically) lan ports the other ones are too small.

I pressed the WPS button on the modem and the internet and wifi lights keep flickering. All the lights on the extender are also on.

Modem is from T-Mobile, but I don't think that is the problem.

I think there might be something wrong with the IP configuration, because it keeps trying to connect at that point and disconnect afterwards. But as I am unable to connect (wifi wise) with the devices I cannot login the site or use the prompt command.

Thanks in advance!