I would like to know if the Wired Network has network connectivity to the internet? Is it able to ping 126.96.36.199
Try pinging 188.8.131.52 in CLI when you are in wired wan. If it's pinging kindly share a screenshot.
Next step, I recommend you configure the router with these settings:
1. Configure the WAN Failover to Wired WAN as main then failover is Mobile.
2. Reboot the router then after that get the router's troubleshoot file and share it with me.