@zBlack It could be a defect in your unit in question, try updating the firmware too, if updating doesn't work, try a reset if none of that works.... Try replacing with a new model. 

@Andrsouzaaa  the firmware is updated, and I have already reset the unit few Times. This my first experience with Tplink products but I'm  not satisfied. 

@zBlack So try the replacement by TP-LINK support, it may be a defective product, I've also been very disappointed with TP-LINK products, I've always been a user, but their neglect is too high, products that don't work, and instead of fixing the problem, they release a new version, and abandon the previous one, but they continue to charge horrors and leave these products on the market for for us to buy and regret having spent so much money on something bad.