@woozle I did what you said and tp-link advised but it did not work. I reseted the RE450 and waited a two or three minutes then i pres WPS on router and after that on the RE 450. The RE450 flashes...

@woozle Thank you. Do you know if tp link extender should be factory reseted before doing that?

How cann I connect this tplink extender to huawei easy mesh router? The easy mesh on Huawei is enabled and I cann bind another Huawei easy mesh device easy but I dont know how to bind it with RE450....