After a recent firmware update, I can no longer access the router’s superadmin panel. Previously, navigating to http://192.168.7.1/superadmin worked, but now it consistently returns a 406 Not Acceptab

Dear TP-Link Support, I am writing to inquire about the purchase options for the TP-Link XX530v router in India. I have noticed that the XX530v is listed on the official TP-Link India website. However