I see there is another post on this issue but it did not solve my problem. Yesterday I updated to the latest firmware and now the dropdown menus to select a client (such as for parental controls) have an issue. The dropdown menus show when I access the control panel on my iPhone, but the dropdown menus will not show when accessing the control panel on either a Windows 7/64 or 8.1/64 computer. I tried rebooting the router, reinstalling the firmware update and rebooting the computers. Help. Thanks.