Cannot ping IP on same router

  • Thread starter Thread starter David
  • Start date Start date
D

David

Get this... I have computer A and computer B connecting
to the same router. The router is connected to my cable
modem. Both computers (XP Prof.) can ping the router and
connect to the internet with blazing speeds, but they
cannot ping each other. I am going crazy, since this
makes no sense to me.

Computer A IP addr = 192.168.0.100
Computer B IP addr = 192.168.0.101
Router/gateway IP addr = 192.168.0.1

Can anyone help? At one time I had no problem pinging
these two machines and sharing files, etc.
 
Try setting the firewall "Trusted sites" on each system
to include all addresss on your LAN, as well as the
specific address of the other system. I just did it and
finally got access to the printer on my old WIN98 machine
from the new XP-Pro machine
 
Thanks, but I do not have a firewall enabled.
-----Original Message-----
Try setting the firewall "Trusted sites" on each system
to include all addresss on your LAN, as well as the
specific address of the other system. I just did it and
finally got access to the printer on my old WIN98 machine
from the new XP-Pro machine

.
Click to expand...
 
"David" said:
Get this... I have computer A and computer B connecting
to the same router. The router is connected to my cable
modem. Both computers (XP Prof.) can ping the router and
connect to the internet with blazing speeds, but they
cannot ping each other. I am going crazy, since this
makes no sense to me.

Computer A IP addr = 192.168.0.100
Computer B IP addr = 192.168.0.101
Router/gateway IP addr = 192.168.0.1

Can anyone help? At one time I had no problem pinging
these two machines and sharing files, etc.
Click to expand...

Inability to ping another computer is almost always due to a firewall.
Make sure that XP's built-in Internet Connection Firewall is disabled
on both computers, as shown here:

Windows XP Internet Connection Firewall
http://www.practicallynetworked.com/sharing/xp/ic_firewall.htm

The firewall can become enabled without your knowledge if you run the
Network Setup Wizard and gave it the wrong option for how the
computers connect to the Internet. The right option with a broadband
router is "through a residential gateway".

If that doesn't fix the problem, check your router documentation to
see if it has a setting that blocks pings or other types of LAN
access.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
 
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