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Hello,
I have a TD-W9970 router. All the wifi devices in my home are disconnected from my wifi network every few hours.
when I try to reconnect them I see the network but I get an "unable to connect" massage.
All the computers that are connected with a cable to the router have a working internet connection all the time.
Reset to the router fixes the problem for a few hours then the problem returns.
I bought a new router , same model, but the problem still happens.
tried to update the router software but it did not help.
I am working with this router for two years but the problem started about a month ago...

please help