The configuration of the WiFi router is not possible with GoogleChrome, Mozilla, Edge... No current browsers allow to display the access configuration pages.
I try with Netscape, but the system ask to install Adobe Flash ?!?
Depending on the situation, in few cases it might be an option to perform factory reset of the controller (with reset:FactoryDefault console credentials) and reapply the config from the backup. But yeah, this is disruptive.
What error you get? If it was just the Flash issue, solutions mentioned should do the work. Do you get 404 or 403 perhaps? What WiNG firmware version is that running?
