Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Checking E1 interface

I have a cable modem that connects to an 831 router. The modem is not seeing the router. The cable company changed out the router, but still having the same problem. The E1 interface shows "not assigned". Is there a way I can test to see if E1 is functioning properly.

Everything work fine on Friday and there have not been any changes made to the network.

2 REPLIES
Bronze

Re: Checking E1 interface

check out the following link for troubleshooting links for Ethernet :

http://www.cisco.com/en/US/tech/tk389/tk214/tsd_technology_support_troubleshooting_technotes_list.html

New Member

Re: Checking E1 interface

I am sure you have done this already, but just in case:

I know from experience that cable modems remember the MAC address of the device that was plugged in when they assigned the IP address (maybe someone can give a technical explanation).

When you change the router or plug your PC directly into the modem, you have to power-cycle the modem.

HTH

123
Views
0
Helpful
2
Replies
CreatePlease login to create content