RT-AC88U Admin Password bug

[Tech9]

If it's a browser issue - Asus App? In System Settings, Router Login Information there is an Edit button with password change option. I would try it.

 

[Jeffrey Young]

I don't know if you have solved your issue yet, however, if you have SSH access to your router, you may be able to reset your password with the following link;

Tutorial - How to reset encrypted admin password via SSH | SmallNetBuilder Forums (snbforums.com)