A. To troubleshoot WiFi issues, start by rebooting your router. Unplug it, wait for about 30 seconds, and then plug it back in. Ensure that your router is placed in a central location in your home, away from walls and obstructions, to improve signal strength.
B. If the problem persists, consider changing the WiFi channel in your router settings. Access your router's admin panel through a web browser (usually by entering 192.168.1.1 or 192.168.0.1) and look for the wireless settings to change the channel.