Re: wireless and firewalls

From: Bill Crocker (
Date: 02/13/04

Date: Fri, 13 Feb 2004 13:26:34 -0500

Possibly your schools network was having problems reaching the outside
world, at the time?

Bill Crocker

"Lisa" <> wrote in message
> I recently had an annoying and perplexing experience with connecting to
> my school's wireless network. I've asked in a few other places whether
> it sounded familiar to anyone, but so far I haven't received any helpful
> replies, so I thought I'd try here.
> I have a Toshiba Satellite (WinXP Home) and recently bought an SMC2635W
> wireless PC card. I got connected to my school's wireless very easily,
> but had one problem. I couldn't send mail or check Yahoo! mail. I
> couldn't send mail using either a client (Thunderbird 0.5) or through
> webmail (Firefox 0.8 or IE6). I finally figured out that I could solve
> all of these problems by turning off Kerio 2.1.5. Turning on the built
> in XP firewall did not cause the problems to return, so it's doesn't
> seem to be a general firewall issue, but something specific (to Kerio,
> to Kerio2, or to stand alone firewalls, I'm not sure. I have not tried
> any other firewalls yet because of the annoyance and inconvenience
> factor). What's odd is that this computer works perfectly (with Kerio
> on) if I'm on a wire. It's only on wireless that the problem manifests
> itself.
> Well, after I turned Kerio on/off/on/off/on/off (etc etc), somehow my
> ability to send and to check Yahoo! mail miraculously returned. No
> changes to my firewall rules were made (well, actually, I did make some
> changes in an attempt to figure out the problem, but ultimately restored
> my rules back to their original state).
> Does this make sense to anyone?
> On a possibly related note, after I did all of this and finally thought
> I got everything working, I tried to subscribe to some newsgroups using
> TB0.5. I was able to subscribe, but was unable to download message
> headers. This problem persisted even after I turned off Kerio, so I'm
> not sure what to make of this problem.