What has control of my PCs?
From: Secman777 (anonymous_at_discussions.microsoft.com)
Date: 12/29/03
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Date: Mon, 29 Dec 2003 09:28:01 -0800
Listen carefully. This is your problem. Cable modems and
cable routers connected together use DHCP to assign leased
ip addresses. Usually, they start with 192.168.0.1. A bug
with Windows 9X, XP, 2000 ... will reassign the ip address
of a working nic(s) with 169.254.00 addresses when certain
apps are installed. The Zone Alarm probably had nothing to
do with this problem. It's a Windows issue. To fix this
you need to do 3 things.
1) Make sure all the network settings for each computer
under Internet Protocal tcp/ip setings are set
for "obtain ip address automatically." Then go the
command line and remove the bogus 169.254.00 route
on all computers at the command line using the
statment. C:\>route delete 169.254.0.0
2) Flush the DNS settings on the computers that don't work
using the command line statement:
C:\>ipconfig /flushdns
3) Reboot your cable modem to reassign ip addresses
to all computers connected to the cable modem.
All the computers should now be able to browse again.
Your welcome,
Secman777
>-----Original Message-----
>I have a Peer to Peer network with 5 PCs connected to a
>router that connects to a cable modem. This setup has
>worked well for 2 years.
>
>During a few days before Christmas I had used 2 of the
>computers, and also had performed Windows, McAfee, and
>Zone Alarm updates (as Administrator) - and also
installed
>new programs (not the same on each). One computer, a
>laptop, is left on 100% of the time to retrieve emails
and
>be a quick access to the internet... so they were both
>active on the network at the same time off and on - the
>other 3 computers were not on during this timeframe.
>
>At some point on each computer I realized I no longer had
>access to the Internet - not even through the dialup
modem
>to AOL. I can no longer see the other computer over the
>network, nor can I ping the router, or any IP - in fact,
I
>cannot even bring up the router's settings screen, which
>is done over the network (IP 192.168.0.1).
>
>Then I discovered in Zone Alarm that the network that
>these are connected to is not my router's gateway IP
>(192.168.0.0) - which has always been the norm. My ISPs
IP
>starts with 68.4 , but the network's IP that I see is
>169.254.0.0. When I bring up I.E. and try to get a Web
>page, I get the message that the page is not
accessable...
>what gives?? I also tried directly connecting one PC to
>the modem - no difference.
>
>I disconnected the net cables from these PCs and booted
up
>my other 3 PCs - they all have Internet access and the
>network IP they are connected to is the router's -
>192.168.0.0... and everything works normally on them.
>
>Can anyone give me the answer as to what happened here?
>Please help!
>.
>
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