My experience with error on username and password is due to sub being expired or you have not entered info correctly on setting up portal. Probably need to change MAC address and reenter again with correct mac address and make sure that you have mag box unplugged and internet not connected while changing mac address, plug power and internet back to mag box and should be good to go. Of you keep reseting or not link mac to your box it will make you waot 24 hours before you can get it going again with correct mac address