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Member Since: ‎04-02-2007
Posts: 1

LAN always connected

My Lan always shows connection and packets being sent & rec'd, even when modem off. What's up and how do I fix? Thanks!
Posted by
Member Since: ‎09-05-2006
Posts: 5

Re: LAN always connected

Kim: Why would you turn your cable modem off? The purpose of a cable connection and DSL [other than higher transmit - receive speeds] is an "always on" connection.

Anyway that is the way it is supposed to work. The ISP is pinging your connection to insure that it is available or other technical reasons.
Posted by
Security Expert

Member Since: ‎09-25-2003
Posts: 5,341

Re: LAN always connected

Kim noted that her "LAN" shows packet activity even when it is not connected to the Internet via a Cable Modem.
This is normal as all devices on a LAN communicate among themselves via TCP/IP/UDP packet exchanges.  Connecting a cable modem to your LAN adds another source/sink for packets.

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Posted by
Connection Expert

Member Since: ‎12-24-2003
Posts: 49,043

Re: LAN always connected

As was said this is normal and the activity likely contains A.R.P. traffic as well.