We had the same issue. The problem was the firmware on the router. I believe the version with the issue was 1.3.2.02. I upgraded to 1.4.2.17. This fixed the issue. Beware, 1.4.2.17 has a login issue if you use the VLAN option. You have to have ...
Update to the previous post. I updated to the Inter VLAN routing to enabled then disabled the option and was able to login to the router. After rebooting the router, I can no longer login to the router. This is a major issue since I rolled out the...
I had this issue also. Changing the Administrator did not fix the issue for me. I was able to login to the router using a VLAN with DHCP enabled. (THANK YOU Gregu!). I then enabled the inter VLAN routing. I could then login using the GUI. I then...