"Abradaxis" <firstname.lastname@example.org> wrote in message news:%23M6hHNsQJHA.584@TK2MSFTNGP06.phx.gbl...
>I don't know the cause, but I am unable to access one particular web site,
> which happens to be the site of the local county governments water district.
> It is a standard address (http://www.pbcwater.com). I'm running IE 7.0.5...,
> and Zonealarm. If I reset my router by powering it down, and then powering
> it up, the site can be reached with no problem. But after accessing it a
> couple of times, the problem comes back again.
> What gives?
The site name that you use is an alias for the real name and address
and unfortunately IE never caches the lookup for the name that you use
and always has to do a lookup for the canonical name to get an address
for the alias. So, if your DNS is responding slowly any lookup may fail.
> Any help greatly appreciated.
You could try using your HOSTS file to put an explicit lookup for
the alias. E.g. add
Alternatively, you could try forcing the dnscache to retain the lookup
for the canonical name. E.g. in a cmd window enter:
ping -n 1 pbcwater.com
An ipconfig /displaydns shows that that would give you about 47 minutes
of cached use of that lookup:
Record Name . . . . . : pbcwater.com
Record Type . . . . . : 1
Time To Live . . . . : 2858
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 22.214.171.124
Hmm... apparently you could also get the same effect for the cache
simply by first entering this URL in your Address bar:
Can you get there when you have your problem symptom?
And then get to the problem site?
If that seems to avoid your problem symptoms tell your ISP about it.
It would suggest that there is something wrong with their DNS
(or however your router works with it.)