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I have 2 computers in my network ones ip address is and the others is When I'm trying to ping from PC-B to PC-A it says:

Pinging with 32 bytes of data:

Reply from Destination host unreachable.

Reply from Destination host unreachable.

Reply from Destination host unreachable.

Reply from Destination host unreachable.

Ping statistics for

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)

And when i'm trying the otherwise it tells me same message with ip address switched..They are both can connect to the Internet

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migrated from Dec 18 '12 at 11:50

This question came from our site for professional and enthusiast programmers.

What's the subnet mask & default gateway on each machine? – SLaks Dec 17 '12 at 17:25
They both have same subnet mask( and default gateway( – Roberto Sadfasdf Dec 17 '12 at 17:35
Please ping the router from both machines and confirm that it is successful. Can you ping the other way (from A to B) – Dave Dec 18 '12 at 11:51
You can check ARP table if the other host is in the network. arp -a will show you MAC addresses and associated IP addresses from the same subnet alongside your router IP and MAC. – mnmnc Dec 18 '12 at 12:08
Downvote because there is no question in your question. What exactly do you want to know? – Werner Henze Aug 7 '13 at 11:35

There could be many reasons for that error. read the link bellow and maybe you would be able to figure this out... Destination_unreachable

another guess is that pinging may be disabled by your router and the router may just be dropping all ICMP echo packets.

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1) Spell check the above answer. 2) Copy the relevant information from the (good article) linked, to prevent 3) Remove the second sentence which is incorrect, and you might get some upvotes being the only (currently) ½ correct answer to this question. – user66001 May 7 '15 at 12:37

Reconfigure your router and make some settings like this


Wireless Authentication type=WPA-PSK/WPA2-PSK


After this setting delete all Wireless network of router listed in your PC. And than connect, It will works. you can ping your both PC together.

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He didn't say he was using wireless. – RJFalconer Mar 30 '14 at 19:59

See if ECHO request are enabled ... in Windows pc go to Windows Firewall -> Advanced (check the local are connection) -> Settings - ICMP tab and check allow incoming echo request and in Windows firewall -> Advanced in ICMP go Settings and check Allow incoming echo request ... if its linux try to enable the echo request ... no time to write this how ...ill be back in a moment and edit if you are using linux ...

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Host is not reachable, therefore there is no chance to DROP the ECHO requests as you are suggesting the problem is. Check another comment on this question, which, @mnmnc, I wish was an answer I could upvote. – user66001 May 7 '15 at 12:33

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