-- So if your router assigned your ATA186 an IP address of 192.168.1.100, you would go to http://192.168.1.100/dev To try and restore Vonage service, plug the following information in to the configuration page: UseTFTP: 1 TFTP Url: Try either 12.144.47.24 or 64.157.171.150 Encrypt Key: 1 Click Apply. Then wait about a minute. Check to see if your dialtone has returned. Keep in mind, DO THIS AT YOUR OWN RISK. I strongly