Asus RT-AC88U Troubleshooting Manual - Page 14
Browse online or download pdf Troubleshooting Manual for Wireless Router Asus RT-AC88U. Asus RT-AC88U 34 pages. Fibre configuration
Also for Asus RT-AC88U: Configuration Manual (2 pages)
Abnormal WAN LED
1. Please make sure the firmware of router is the latest one.
2. Please confirm that your router has correct WAN connection.(refer to below)