Solved Strange Problem with Windows Server Internet Connectivity

Dell / Latitude e6410
June 30, 2014 at 10:10:48
Specs: Windows 7 Professional 64-Bit, Intel Core i7 M620 2.66 GHz / 4 GB DDR3
Hey all,
So on my network at home, I have 3 Windows Server 2008 R2 machines running (2 are Virtual Machines inside 1 physical computer).

DC1 is my Domain Controller, and also routes internet traffic, does DHCP/DNS
HV0 is the Hyper-V Host
WDS runs other roles like WSUS and WDS.

So, my problem is with HV0. It has a static IP address (192.168.138.3) that routes through DC1 (192.168.138.1) and also uses DC1 for DNS at the same address. DNS resolution works perfectly (e.g. a test on google.com returns proper addresses), but whenever I try to do pings to Google, all I get is the following (it can't connect to the internet either):

Pinging google.com [74.125.239.98] with 32 bytes of data:
Reply from 192.168.138.3: Destination Host Unreachable.
Reply from 192.168.138.3: Destination Host Unreachable.
Reply from 192.168.138.3: Destination Host Unreachable.
Reply from 192.168.138.3: Destination Host Unreachable.

Ping Statistics for 74.125.239.98:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)

However, WDS uses the exact same configuration aside from a different static IP (192.168.138.2) and it gets internet connectivity perfectly, pings all go through and respond normally, and DNS works.

So, my question is, does anybody know what the deal could be with HV0? I can remote desktop into it perfectly to work on it, but it just won't connect to the internet when my other servers and computes can.

Thanks for the help,
RMT2

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✔ Best Answer
July 1, 2014 at 15:00:33
post a ipconfig /all from DC1 and HV0

Answers are only as good as the information you provide.
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message edited by wanderer



#1
June 30, 2014 at 19:31:44
So, you are using DC1 as a router instead of a regular router? How many NICs are in that machine?

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#2
June 30, 2014 at 19:45:18
@guapo: It is a router. Only 2 NICs. One connects to the outside network to get internet access, the other is connected to a network switch that powers my internal domain network.

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#3
July 1, 2014 at 06:11:05
What happens if you

ping 74.125.239.98

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Related Solutions

#4
July 1, 2014 at 13:59:51
It comes up with the same result, "Destination host unreachable."

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#5
July 1, 2014 at 15:00:33
✔ Best Answer
post a ipconfig /all from DC1 and HV0

Answers are only as good as the information you provide.
How to properly post a question:
Sorry no tech support via PM's

message edited by wanderer


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#6
July 1, 2014 at 16:19:39
From HV0:
Windows IP Configuration

Host Name . . . . . . . . . . . . : HV0
Primary Dns Suffix . . . . . . . : rmtnet.wss
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : rmtnet.wss

Ethernet adapter Virtual Private LAN:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Private LAN - Virtual Network
Physical Address. . . . . . . . . : 00-1E-4F-9B-3A-4B
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::56d:f0da:ae08:f41d%15(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.138.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 0.0.0.0
192.168.138.1
DHCPv6 IAID . . . . . . . . . . . : 268443215
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-DB-76-E6-00-1E-4F-9B-3A-4B

DNS Servers . . . . . . . . . . . : 192.168.138.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{709176C2-A081-453E-BEDC-4B854A7A2CB3}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

-----------------------------------------------------------------------------------------------
From DC1:
Windows IP Configuration

Host Name . . . . . . . . . . . . : DC1
Primary Dns Suffix . . . . . . . : rmtnet.wss
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : rmtnet.wss

Ethernet adapter Virtual LAN:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Ada
pter #4
Physical Address. . . . . . . . . : 00-15-5D-3F-05-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::545a:f3c5:80db:9bf7%16(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.138.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.137.20
DHCPv6 IAID . . . . . . . . . . . : 352327005
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-5F-CA-EB-00-15-5D-8A-FA-00

DNS Servers . . . . . . . . . . . : 192.168.137.20
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Virtual Internet:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Ada
pter #3
Physical Address. . . . . . . . . : 00-15-5D-3F-05-00
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::b44c:c88:8ae6:6802%15(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.137.20(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : fe80::b999:ad90:db42:7f75%15
192.168.137.1
DHCPv6 IAID . . . . . . . . . . . : 301995357
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-5F-CA-EB-00-15-5D-8A-FA-00

DNS Servers . . . . . . . . . . . : 192.168.137.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{5A15625E-4EEB-44C2-B846-6DBA2C512912}:

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 isatap.{1151A8EC-0896-43F9-8757-B10F5BBCD94A}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

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#7
July 1, 2014 at 16:24:04
Just fixed it! I saw in the ipconfig /all of HV0 that there were two default gateways: 192.168.138.1 and 0.0.0.0. So, googling it led me to find using the command "route delete 0.0.0.0" in a command prompt, then setting the default gateway in the adapter configuration to 192.168.138.1, and all is good again. Thanks for the help everyone!

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