If you're forgotten your wifi password, if you have a device that does remember the password, you can log into the router's gui to see/change wifi settings. Or if you have a device thats hardwired into the router, you can log in to the gui that way to see/change the settings. you list using the a6210 and not a router model number. If its a netgear router, this is the procedure that'll let you change or see the wifi info.
