I solved the issue of logging in to the account management page, but in doing so I created a new problem with IP address assignments. To resolve the issue, I set the IP address range for the Archer to be within the range of the root router. However, after doing this I started getting multiple error messages that state:

"Another device on the network is using your computer’s IP address (192.168.1.209). Try connecting again later. If you continue to have problems, change the IP address of this computer or the IP address of the other device. Contact the network administrator if you need more information."

With that in mind, I shortened the IP address range for the root router, then I set the IP address range for the Archer router to the portion that had originally been assigned to the root router (e.g., 192.168.1.241 to 192.168.1.254). After doing that, I received a few more of the error messages I pasted above, so I rebooted the router. Even after doing that I continued to receive the error message I posted above.

With that in mind, I still effectively have the problem I laid out in my original post.

@nassimsultan I am having the same exact issue/problem, how can I correct this - or do I have to call tech support??

Jeffrey K.

jeff.kiseli@gmail.com

@nassimsultan 

Faced with similar problem, solved it by cloning my laptops MAC to the Router.

@nassimsultan 
I am having the same problem... I haven't tried to clone my mac address yet, as I can't access the router... Any other solution?

@Jbye Did you enter the root router? Because that interface is not the one of the Archer C7 router.