Computer help forum: Any idea why computer IP address would change?

by: wgrayson September 9, 2010 2:56 PM PDT

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Any idea why computer IP address would change?

by wgrayson - 9/9/10 2:56 PM

About 6 or 7 months ago, I successfully set up my home PC (running Windows 7 Pro) to work with Remote Desktop Connection. I figured out all the hard stuff --- how to access it via the router's IP address, how to configure both the router AND the firewall to open the appropriate ports, etc.

My actual PC behind the router and the firewall had an IP address of of something like 198.1.168.100 (this one of the default IP addresses given to a PC as part of a network). This IP address needs to be plugged into the router's settings. While I was away on a trip I was unable to access my PC remotely. When I returned to troubleshoot the issue, I discovered the IP address had changed to 198.1.168.101 (note the last digit change). Ummmmmmmmmm, any idea how an IP address could have changed?

My wife informed me that on one day only she was having connectivity issues with the internet, so I instructed her on resetting both the cable modem and router --- the simple way of unplugging and replugging both. Could this have anything to do with it? RDC is working fine now, but I'm just curious.

Thanks in advance,

W!

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