I have an ADSL modem that works for years without any problems. It has broken the connection several times , each time seeing the modem started blinking and I got the message Error 680: no dial tone. Unable to reconnect , it does not work again after a reboot. I am using windows 7. I try to connect to the Internet but an error 680 occurs and you have no dial tone. This incident is most often related to a hardware problem. Please help.
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