Thank you in advance for all your help. I know this may be a pretty simple question but none-the-less I am a novice. The company I work for had recently been experiencing intermittent connectivity problems with remote sites via T1 connections. The links had been operating normally and then without any configuration changes began faltering. A simple reboot of the central router solved the problems. Basically what I am asking is, is power-cycling a necessary maintenance procedure for router and/or other Cisco equipment such as switches. I am asking specifically about the 3600 and 2600 series of routers. I have never heard of it being so but like I said I am a beginner. Thanks again for any help you can offer.