I am running a ASP.net website on Windows 8.1 with IIS. I could access my website all morning. I did not make any changes. By afternoon I could not access my website. If I ping my IP address or my website I get: Reply from 192.168.0.3: Destination host unreachable. I am new to networking. Can anyone give me any help in resolving this problem?

192.168.0.3 is your IP address. first try run->> cmd--> enter..> type:   ipconfig /flushdns -->enter (it's reconfiguring your dns to recognize all known ip address) ping again. If not helped then write your website address to lmhosts list. 

Running ipconfig /flushdns did not help. I still cannot ping my website or IP address. I get: Reply from 192.168.0.3: Destination host unreachable. Please, what do you mean by write your website to lmhosts list?

Ok lets figure this issue of yours out. 

First, please post the ipconfig result,

then, try to ping 127.0.0.1 from your webserver and see what you get...

Here is my ipconfig /all:

Windows IP Configuration

   Host Name . . . . . . . . . . . . : dell-pc
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No

Wireless LAN adapter Local Area Connection* 3:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
   Physical Address. . . . . . . . . : 12-10-41-C2-74-55
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wi-Fi:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Dell Wireless 1705 802.11b/g/n (2.4GHZ)
   Physical Address. . . . . . . . . : B0-10-41-C2-74-55
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::9cb8:19f7:bbd0:2810%8(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.0.3(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Saturday, June 27, 2015 3:17:29 PM
   Lease Expires . . . . . . . . . . : Monday, June 29, 2015 10:26:18 AM
   Default Gateway . . . . . . . . . : 192.168.0.1
   DHCP Server . . . . . . . . . . . : 192.168.0.1
   DHCPv6 IAID . . . . . . . . . . . : 162533441
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-A9-B4-EF-C8-1F-66-2F-91-39

   DNS Servers . . . . . . . . . . . : 192.168.0.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Bluetooth Network Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
   Physical Address. . . . . . . . . : B0-10-41-C2-74-56
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
   Physical Address. . . . . . . . . : C8-1F-66-2F-91-39
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{2D4EB789-3342-4164-A69C-579D2CB2B8FC}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:0:9d38:6ab8:cd5:1950:4761:c3bb(Prefe
rred)
   Link-local IPv6 Address . . . . . : fe80::cd5:1950:4761:c3bb%7(Preferred)
   Default Gateway . . . . . . . . . : ::
   DHCPv6 IAID . . . . . . . . . . . : 369098752
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-A9-B4-EF-C8-1F-66-2F-91-39

   NetBIOS over Tcpip. . . . . . . . : Disabled

Here is my ping of 127.0.0.1:

Pinging 127.0.0.1 with 32 bytes of data:
Reply from 127.0.0.1: bytes=32 time=7ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Ping statistics for 127.0.0.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 7ms, Average = 1ms

Did you type your web address to lmhosts file?

It will forward your webaddress to that ip.

Can you give me the steps involved in typing my web address to lmhosts file? I don't know how to do this.

Goro windows-->> system32-->> Drivers-->> etc folder

open file hosts with notepad and at the end of file write 

192.168.1.2 (your web server ip address) google.com (your webaddress name)

save it. But when before saving be sure that you have write access to this file or you have administrator privileges to make changes in file.

Later when you will ping your address you can resolve the ip or you can open your web address through IE 

I edited the hosts file with my IP address and my website name and tried to ping them before and after a reboot and I still get: Reply from 192.168.0.3: Destination host unreachable.

Did you save it in same location?

Yes I saved it in the same location.

Does it VMWare or Hyper-V?

Please describe your topology...

What is the IP address of your webserver? from what network do you ping the webserver?.... Please provide little info about your topology, so we can have a clear picture.

Thanks

Can you check your firewall? You can add your web address to Firewall rule.

I don't know if it is VMWare or Hyper-V. Can you tell me how I check? The IP address of my webserver is 192.168.0.12. I am pinging my webserver from a wireless network on the same machine that is running IIS. I don't know anything else about topology to tell you. I am new to networking. Can you tell me how to add my web address to Firewall rule?

Can you change your dns address to 8.8.8.8 and check again?

Does it possible to check it from other PC?

Are you suggesting I go to ipage where I have my web name registered and change the DNS A records to point to 8.8.8.8?

NO just change your own computers DNS address. I want to be sure about the problem is occur only in your computer. If in others also same problem then need to check IIS for rules 

Also need to ckeck the webserver IIS service is started or not.

I don't see a service under task manager -> services tab for IIS. My website is running when I bring up Internet Information Services Manager. Can you please tell me how to change my computer's DNS address?

Goto Network adapter properties. find the ipv4 protocol and double click on it. On opened window click to 'use  folowing dns server  address'. And write the 8.8.8.8 to the first address. and the click to ok. restart your computer and check.

I changed the dns server address rebooted and it did not make any difference. I am still getting: Reply from 192.168.0.3: Destination host unreachable when I ping my website and IP address.

Service tab for IIS server is in your webserver

Don't look it for in your own computer.

Can you login to you webserver by remote or locally? If yes then inform I will explain you what need to check.

Hi Lori,

>>I am still getting: Reply from 192.168.0.3: Destination host unreachable when I ping my website and IP address.

>>The IP address of my webserver is 192.168.0.12.

According to the ipconfig information , it seems that hyper-v is not enabled on win8.1 .

I need to confirm that there are two computers , one is your 8.1 computer with IP 192.168.0.3 , the other is web server with IP 192.168.0.12 .

If web server is a physical computer please ensure that it is connecting to same LAN with win8.1 computer , in other words they should be able to ping the gateway 192.168.0.1 .

In addition , please disable firewall on each computer for troubleshooting.

Hope it is helpful to you .

Best Regards,

Elton Ji

I am on one machine on a wireless network. It seems my IP address is changing. Because I used to have it as 192.168.0.12. But now ipconfig is showing 192.168.0.3. Can an IP address change? If so how do I make it static? I logon to my IIS machine locally.

If you configured IP address to automatic then it will take IP address from DHCP. If you want to make it static then go to network adapter properties as I explained before on changing DNS address, it's the same thing, same way. Just goto control panel on the left side of the panel you will see the 'change adapter settings' link. Click on it and new windows will open. From the list find the wireless adapter (if you connecter with wireless) or Local area connection (if you connected with Cable also you need to see the 'connected' below the connection maybe you will have few local area connection but only one of them will show the conencted) 

Follow the step: 

save and wait 1 minute and check!

Hi,

Why does my ip address show up as 192.168.0.12 when I ping my website name? When ipconfig shows my IP address as 192.168.0.3. Here is a paste of my pinging my website name:

C:\Users\Lori>ping www.lorihalderson.com

Pinging www.lorihalderson.com [192.168.0.12] with 32 bytes of data:
Reply from 192.168.0.3: Destination host unreachable.
Reply from 192.168.0.3: Destination host unreachable.
Reply from 192.168.0.3: Destination host unreachable.
Reply from 192.168.0.3: Destination host unreachable.

Ping statistics for 192.168.0.12:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Your IP is not 192.168.0.12 it's 192.168.0.3

The 192.168.0.12 is the your web server machine ip address. Reply from is your IP address. Because when you pinging any web address or machine then first routing is going through your DNS addresses. If there is routing to the destination then you will have response from web address about ping TTL and packet size. But in this situation your computer didn't find any record for that adress and cannot reach to that address your machine is responced to you that Destination host is unreachable. 

I made the above changes and I still am getting Destination host unreachable. Someone suggested I need to buy a static IP from my ISP. Is this what you suggest as well? Would I fill in the above screen the same except the IP address would be the number my ISP gives me?

Does your Hyper-V machine is created in your computer? If yes pls check the Hyper-V connection settings. if possible also pls insert here the screen capture of your Hyper-V machine ipconfig /all command.

I'm sorry, I don't know what you mean by Hyper-V machine. I am running one windows 8.1 machine with IIS running on it. I am on a wireless network. I was running a ASP.net website okay when all of the sudden without any changes I could no longer access my website. I then started to get the destination host unreachable error. Should my IP address I have configured with IPage, my domain name host, point to my router IP or my machine IP?

I mean where is located your website server?

Does it virtual machine running in your computer or it's a normal physical computer running in another place, or it's virtual machine running in another physical machine?

Hi Sir,

The possible fix for the ICMP error message "Destination Host Unreachable" :

Make sure that local host is configured correctly

Make sure Destination Computer/Device is up

Disable the Firewall and check for the issue

Perform a tracert to the destination IP and check where the problem lies

http://www.corenetworkz.com/2009/05/destination-host-unreachable-reason-and.html

Best Regards,

Elton Ji