I have a 2821 ISR connected to a DSL modem and keep losing connection to my ISP. I have cahged IOS's had numerous calls to TAC and the ISP has changed ports on the DSLAM - nothing has helped we have fine performance and then spontaneously lose the Internet. No one has found the cause of the instability. WE are upgrading to T1 Frame Relay in the hope that the different technology will solve the problem. WE have about 150 users and the issue has become very serious. Has anyone experienced anything like this ?
