Wi-Fi router does not distribute the Internet via Wi-Fi?

Question

System administration

There is Huawei HG232f. Tries to distribute the Internet via WLAN and LAN, but it does not work.
On a computer to which a LAN cable is connected from a router, the Internet works fine.
I'm trying to connect from the tablet to the router, as soon as I enter the password, the message "Unavailable" or "Saved / WPA / WPA2 Protection" appears. I click on the "Connect" button, no reaction, the same inscription "Saved / WPA / WPA2 Protection".

Answer 1

Are there devices with vafay other than a tablet? A smartphone for example?
Have you read Ro Uther's logs?
Does DShTsP issue an address? What is issued (IP gateway ...) on the tablet?

Answer 2

Try to change to wifi channel from 1 to 5

Answer 3

filtering by MAC is not a case?

Answer 4

Try playing around with the TX Power, Frag Threshold and Beacon Period settings if available. For example, when I set a large value of TX-power, my smartphone falls off.