EA4500 router web page not accessible for use.

I cannot login, web page pops up but its only a blue screen with help icon and privacy icon at bottom nothing is interactive. Have tried mylocalrouter.com, linksyssmartwifi.com. When uninstall software, hard reset router then reinstall software I get to the the login icon but when try to login it shows blue screen as previously mentioned in message. Router works but at a reduce speed and cannot manage any options. Tried updating firmware but once I unzip there is no way to install the .ssa firmware file