Ping gets Request timed out

25 pts.
Tags:
Ping Request Timed Out
Ping Requests
Wireless Network
Wireless networking
i have one pc (A) and when other pc (B and C) tries to ping pc (A) it gets request timed out. but when pc A pings B and C, it get good response. we need to connect to pc A because our data are there. all of the pc can connect to the router and to the internet. i already tried to update pc A wireless network card but its still the same. Can you pls enlighten me with this problem? Thanks!

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Disable the firewall on pc a…it sounds like a firewall problem.

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Sounds like B & C do not have a route ( or know the way) to computer A. Are all of these computers on the same subnet? Check the default gateway settings on B & C.

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  • Wincheer
    i already disabled firewall. i also uninstalled my antivirus but still its the same. i still get request timed out when pinging pc A., how can this be?
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  • carlosdl
    I agree with the last answer. It looks like a route problem. What are the ip addresses and default gateway of the 3 pc's ?
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  • BlankReg
    It is NOT a routing problem, otherwise A could not PING B & C. The ICMP ECHO (a PING) sends one packet out, and receives one back which is not a response through the same connection, but a completely separate ICMP ECHO-REPLY. If there were routing problems, then the reply would not arrive, and none of the PINGs would work. You hint that this is a wireless network. Have you checked to make sure that the access point does not firewall. If it is a wireless router, then it may well do this, although I would expect it to do the same for B & C as well. My money would also go on the firewall on PC A blocking these ICMP ECHO packets. You say you already changes the wireless adaptor, and get the same result, and disabled the firewall, but still get the same result. Anti virus is not going to make a difference, as this works at the application layer, and the problem is at the network layer. I do not think that the firewall is really disabled. You need to check again, or confiure it to allow ICMP ECHO packets, and test again. You could try putting it on a wired connection, and see if it works then. If you are trying to access data on PC A a lot of the time, it will work better if it is wired, rather than wireless, as there will be more bandwidth available for it. As Carlosdl asked, please post the IP information and a better description of the network. This should help us to debug this problem better.
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  • Wincheer
    Hi guys! Thanks for the replies. Im still stuck on it. @Blankreg - i checked my firewall which is under windows firewall and it is turned off. I dont have any antivirus now as i have uninstalled it. I also check the wireless router and turned of the firewall there but its still getting request timed out. heres the ip adressess.. pc A = 192.168.1.100 pc B = 192.168.1.101 pc C = 192.168.1.102 A can ping B and C, B can ping C, C can ping B but B and C can not ping A.. A can ping the router. The default gateway is 192.168.1.1 for all and the Subnet mask is 255.255.255.0 for all..the network has a wireless router and all PCs are connected wirelessly. All pcs are able to connect to the internet..
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  • Labnuke99
    With this information, it does appear to be something on computer A blocking inbound ICMP echo requests. Run Microsoft Network Monitor or Wireshark on computer A to see if it receives any of the ICMP echo requests packets from remote computers.
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  • carlosdl
    BlankReg is right. It is not a routing problem. I overlooked the fact that A was able to get ping responses from B and C, and the information provided about the IP addresses confirms that. Have you tried doing something different than ping requests to computer A ?
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  • petkoa
    On first reading this appeared as a netmask problem - but you say it is properly configued. So some other considerations: How do you ping them - by DNS names or by IP? Might it be a DNS problem if you ping them by names? Some leftover c:windowssystem32driversetchosts file? Then, did you check your wireless router configuration - some of them are quite tricky, may implement bridging, MAC filtering, etc... Are your all your PCs indeed on the same side of the router firewall? Good luck, Petko A.
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