Can ping out but not respond

[rwelleosu]

I've got a Dell laptop just updated to SP3 and am having issues with ping. From my PC i can ping everything on the network, even my own IP address. But a ping request from another pc to mine times out. I ran a port sniffer and all ports are disabled. Did the regular windows firewall checks enabled echo response enable ICMP, turned it off, enabled everything. Reset the TCP/IP stack no change. created a blanket policy for icmp no change. anybody have any ideas how to get the ports open. I have Nortel WMS server loaded on my laptop could that have anything to do with the ports being blocked?

 

[BadBigBen]

Well it does sound like a firewall problem...

for testing you could deactivate the Windows Firewall, and check your AV, some come with functionality similar to firewalls, or with firewalls themselves...

Ben

"If it works don't fix it! If it doesn't use a sledgehammer..."

How to ask a question, when posting them to a professional forum.

 

[linney]

These problems nearly always turn out to be caused by firewalls.

Any success if you boot into "Safe Mode with Networking"?

Cannot ping XP workstation

http://www.tek-tips.com/viewthread.cfm?qid=920007

 

[rwelleosu]

Still no luck getting my computer to allow an echo request. Port scanner says 445 is open. I have ICMP enabled on windows firewall. At a loss now. Spent two days working on it to no avail.

 

[pansophic]

Are you sure that the Windows firewall is the only firewall on the system? Do you have (or have you had) any AV or personal firewall software that may have put a shim in TCP/IP stack? Norton and McAffee have been notorious for leaving that kind of problem behind when removed.


pansophic

 

[IllogicallyLogical]

If you are positive that you do not have any third party firewall running, try resetting the TCP/IP stack and see if you get the results you are after.

- How to reset Internet Protocol (TCP/IP) in Windows XP

http://support.microsoft.com/kb/299357

Joey
CCNA, MCSA 2003, MCP, A+, Network+, Wireless#

 

[rwelleosu]

i was flipping through the services and there is mcafee entries but they are disabled. i tried to remove one of them and access was denied. even as an administrator. Mcafee is not a program option to be unistalled though.

 

[rwelleosu]

Already reset the stack. same result.

 

[BadBigBen]

Have you completely turned off the Windows Firewall, and uninstalled any AV, and then tried?

Also, check to see if IPv6 is installed and active, if so, then deinstall it, as it is not necessary on a home LAN and at present not widely spread out on the

http://WWW...

I've seen it cause some havoc on other networks, and it can always be reinstalled at a later time...

Ben

"If it works don't fix it! If it doesn't use a sledgehammer..."

How to ask a question, when posting them to a professional forum.

 

[IllogicallyLogical]

Try running the McAfee Consumer Products Removal tool.

http://download.mcafee.com/products/licensed/cust_support_patches/MCPR.exe

Joey
CCNA, MCSA 2003, MCP, A+, Network+, Wireless#

 

[linney]

Have you tried testing another machine which is only connected with a crossover cable to your machine to see if you can ping one another bypassing the Router?

http://www.google.com/search?hl=en&...d=1&q=cannot+reply+to+ping+request+xp&spell=1

 

[rwelleosu]

Thanks for the help guys! Got it working with the mcafee removal tool.

cheers!

 

[BadBigBen]

Just as I predicted, an AV with firewall behavior blocking stuff...

and not to forget IllogicalLogical's suggestion which pointed you in the correct direction...



Ben

"If it works don't fix it! If it doesn't use a sledgehammer..."

How to ask a question, when posting them to a professional forum.