Looks like this one's kinda permanent. Even refused attempt to SSH into it...
If ssh'ing in with Putty does not work, then i guess it does not matter which browser you try to use. Did you try other passwords? Like admin, and such? Some other miners had different passwords for SSH than webgui.
Maybe someone got access to it and changed the password? Dunno.
Maybe you'll have to consider it bricked and look into how unbricking the S3.