Internet problems after Windows update

I have a home network with four wired computers and one wireless
laptop. Linksys wireless router and Motorola modem. Windows XP Pro
on all.

I had been having intermittent problems connecting to the internet and
Email on the two most used computers for a few days and finally lost
the connection entirely. I had installed Windows updates on them a
few days earlier. I got out the laptop and connected with it. Did my
business and installed Windows updates, shut it down and put it away.
I needed to get on line later so I used my "test" computer. It got on
line fine. I ran Windows updates on it during a break and when I
tried later, it would no longer connect to the internet. I FINALLY
realized that the problem might be the updates. I checked the laptop
and sure enough, it would no longer connect. I went to my graphics
workstation which has not been updated for a couple weeks. It works
fine and connects fine.

All my settings are fine and all the non-connecting computers say that
they are connected. The wireless laptop says it is connected and has
excellent signal strength but it will not connect. I spent an
unproductive hour with Cox tech support during which we unplugged and
replugged the router and modem, changed settings and disabled
ZoneAlarm all to no avail. I
can sometimes get connected on one computer by disabling my Local Area
Connection and then enabling it but the connection is lost at shutdown
and re-establishing it is iffy. All the while the one computer that
was not updated connects fine.


Any help would be very much appreciated.

On Sun, 26 Jun 2005 20:40:34 -0700, Dave Smith <dog-rem-@cox.net>
wrote:

>I have a home network with four wired computers and one wireless
>laptop. Linksys wireless router and Motorola modem. Windows XP Pro
>on all.
>
>I had been having intermittent problems connecting to the internet and
>Email on the two most used computers for a few days and finally lost
>the connection entirely. I had installed Windows updates on them a
>few days earlier. I got out the laptop and connected with it. Did my
>business and installed Windows updates, shut it down and put it away.
>I needed to get on line later so I used my "test" computer. It got on
>line fine. I ran Windows updates on it during a break and when I
>tried later, it would no longer connect to the internet. I FINALLY
>realized that the problem might be the updates. I checked the laptop
>and sure enough, it would no longer connect. I went to my graphics
>workstation which has not been updated for a couple weeks. It works
>fine and connects fine.
>
>All my settings are fine and all the non-connecting computers say that
>they are connected. The wireless laptop says it is connected and has
>excellent signal strength but it will not connect. I spent an
>unproductive hour with Cox tech support during which we unplugged and
>replugged the router and modem, changed settings and disabled
>ZoneAlarm all to no avail. I
>can sometimes get connected on one computer by disabling my Local Area
>Connection and then enabling it but the connection is lost at shutdown
>and re-establishing it is iffy. All the while the one computer that
>was not updated connects fine.
>
>
>Any help would be very much appreciated.

Another note:

I did a system restore and that didn't help either. I tried removing
the update in Add/Remove Programs but the latest update that shows
there is dated 2/15/05 and I've updated many times since then.