strange internet problem

  • Thread starter Thread starter Brian Nichols
  • Start date Start date
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Brian Nichols

I have a LAN with about 50 computers. We have recenlty
added a WatchGuard firewall. Since then I have a couple
computers that cannot access the internet. When I ping my
DNS server I get a "Destination Host Unreachable" from my
router. This is only on two of the machines. Does anyone
have a clue as to why it would only affect two machines?
How would I go about fixing this? It seems it is a
problem with the machines themselves.
 
Are the two problem machines by chance the same brand,
such as Dell, HP/Compaq, etc?

Having had serious problems with branded/proprietary-front-
end machines in the past, I immediately start looking from
that premise when anomalies are limited to only a couple
of machines....
 
I don't know if you've got a reply to this. I just found
these newsgroups and I do not have a client that can
reassemble threads yet (any suggestions, other than
outlook express I refuse to use an inferior product that
tries to steal my email settings everytime i run it from
Outlook)

Im sure you've checked it but make sure that you have the
IP address, gateway, and dns servers are set to auto
configure if you are using DHCP. that firewall may have
changed gateway setting. I am unfamiliar with that
particular product so this is just a wild guess.

Reason I mention this is a silly mistake I made recently.
My ISP has a very overburdened dns server so I ran one
locally. I had to set several things to manual config to
do so. Well I got a new router with new subnet settings
and completely forgot about setting stuff manually.
 
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