Provide more information.
What browser and OS are you having the issue on?
Any addon scripts running on the router?
Any browser extensions/addons being used?
Do you have AiMesh nodes previously configured through the router?
Have you rebooted the router?
Have you cleared the browser's cache?
Have you tried a different browser?
Have you tried a different browser on a different computer/device?
Page loads fine on my end with a RT-AX86U Pro running 3004.388.8_4 running YazFi and YazDHCP. No active AiMesh nodes. Using Brave on Windows 11.
This usaully happens when WAN is retored or router is restarted. Once after some refreshes the page loads properly then it continues to do so until next WAN disconnection or router restart.