This is because there is a channel conflict, which can be resolved by changing the channel of 24g frequency.
1. Open the browser and enter 192.168.1.1 to go to the gateway page of the router.
2. In \"Wireless Settings\
3. Select Enable WDS in the band bandwidth drop-down list.
4. Then click \"Scan\" on the bridge page. (WDS is enabled using the wireless router's bridge function for channel detection.)
5. View the channels of other routers. Click \"Back\" after refreshing a few times.
6. Change the channel to another channel, or set it to 1.
7, as long as the channel is different from other routers, then click \"Save\".
8. Restart the router.