The solution of after wifi repeater is configured to wifi router successfully, the computer can't join this wifi network

First:  Problem
After wifi repeater is configured to wifi router hotspot, power off and turn on the  device, after making sure the correct password is entered, the computer can not  connect to the repeater wifi hotspots.

Second: Reason
The RF parameters of some wireless devices channel are inaccurate.

The third: Solution
Suggest the users to change the channel of the wifi router.