@TP-Link_Deco Yes i turned off fast roaming feature before. And laptop connects the Deco 2.4 G. also i closed before 5 G with Deco App. The model number of wireless adapter on Hp laptop is realtek...

My laptop is HP 15-db1084nt. Constantly, deco e4 internet connection is lost for HP Laptop. I setup again Deco E4, but it is not work and the problem still remains. My HP laptop drivers are up to...