I'm willing to bet that it's not your computer, but rather the 
application or the service the application uses. Look at the web site to 
see if there are issues with it. I know when I tried to purchase a game 
with something similar that I had to do some arcane application 
configuration changes to get it to work.


bradyh at bitstream.net wrote:
> I'm trying to play Penny Arcade: On the Rain-Slick Precipice of Darkness
> (which has a Linux version for anybody interested in such things.) But I
> can't get it to verify my purchase code.  Apparently it uses port 443 to
> connect back to the server and that is somehow blocked.
>
> I checked my Ubuntu setup and the firewall isn't running. It doesn't look
> like my DSL modem is blocking that port.  It might be my ISP.  How do I
> find out where it's being blocked?  Can I do a traceroute that checks for
> ports?
>
> But then, if port 443 is blocked I shouldn't be able to get an SSL
> connection and I know I can do that because I've pulled up my USBANK bank
> account info. So it seems like this must be a bug somewhere...but where?
>
> Thanks,
> Brady
>
>
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