Network OK But No Internet Connection Sharing

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davidbugeja

Hi All,

I really need your help here. This is my situation:

I have a laptop which connects directly to the internet. This works fine and this laptop distributes via WIFI an internet connection to two other systems. The scenario worked well until now. Something happened i don't know what and the other two system are not connecting to the internet now.

What is happing: The other two systems keep on saying Connecting To Google... until eventually they say "The Connection Has Timed Out"

Current System:

Worked 100% well before.
Absolutely no Firewalls installed on enabled!
Wireless Network Connects Without Any Problem
IP Address is assigned correctly on all systems
System can ping each other

What im assuming:

It has something to do with my laptop with an update or a setting that has gone wrong.

What i have tried:

Almost everything! From un-installed drivers to automatic IPs and anything else i could find. Still same problem however!

Information You Might Need:

Windows XP Service Pack 2

Windows IP Configuration

Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No



Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Physical Address. . . . . . . . . : 00-17-08-32-21-94
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.0.0.1
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . :



Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom 802.11a/b/g WLAN
Physical Address. . . . . . . . . : 00-14-A5-E5-6D-56
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :


Ethernet adapter Hamachi:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Hamachi Network Interface
Physical Address. . . . . . . . . : 7A-79-05-B1-BA-2E
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 5.177.186.46
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 5.0.0.1
Lease Obtained. . . . . . . . . . : Monday, December 24, 2007 1:59:26 AM
Lease Expires . . . . . . . . . . : Monday, December 24, 2007 2:03:41 AM

PPP adapter MaltaNet:

Connection-specific DNS Suffix .
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 85.232.198.135
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 85.232.198.135
DNS Servers . . . . . . . . . . . : 194.158.37.196
194.158.37.211

I really need your help guys. Hope someone can help me fix my problem. Maltanet here is the connection i use to connect to the internet via my laptop while Wireless Connection is the one used to connect to the wireless network.

Thanks in advance!

David
 
1. when did you install hamachi? tried disabling hamachin network interface?
2. did you install microsoft updates lately?
3. check if the ics service is running and be aware that it is connected to the windows xp firewall. check this firewall as well
 
mscrx said:
1. when did you install hamachi? tried disabling hamachin network interface?
2. did you install microsoft updates lately?
3. check if the ics service is running and be aware that it is connected to the windows xp firewall. check this firewall as well
Click to expand...

Thanks for replying!

1. Hamachi has been installed before without any problems. Tried disabiling Hamachi (which is only installed on my host machine) however with no sucess.

2. I always install updates. I have all the latest. I recently installed some minor update but i forgot which!

3. How do you do this? The Maltanet Connection is set to Shared.

Thanks again for your reply! I really appriciate it.
 
I have also Run Network Diagnosis on both systems.

On the remote systems all test have passed however on my host systems I have had some failed tests.

They are posted here as an attachment.

On the Host system the internet works just fine however on the other systems I get Request time out when pinging an external address such as Google.

Hope that provides some more information you might need!
 

Attachments

  • Netdiag.zip
    54.3 KB · Views: 5
your host system kinda has a problem with the dns servers. please open a command line prompt (start > run > cmd.exe) and type in this:

ipconfig /flushdns

this will purge the dns resolver cache.

this doesn't explain why your host systems internet still works but give it a try...

for the ics / firewall thing. do this: start > run > services.msc
then scroll down to windows firewall / internet connection sharing (ics) and see if the service is started.
 
mscrx said:
your host system kinda has a problem with the dns servers. please open a command line prompt (start > run > cmd.exe) and type in this:

ipconfig /flushdns

this will purge the dns resolver cache.

this doesn't explain why your host systems internet still works but give it a try...

for the ics / firewall thing. do this: start > run > services.msc
then scroll down to windows firewall / internet connection sharing (ics) and see if the service is started.
Click to expand...

Windows firewall / internet connection sharing (ics) service is set as automatic and started.

Regarding ipconfig /flushdns it tells me:

Could not flush the DNS Resolver Cache: Function Failed During Execution.

The host system obtains internet from the PPP Connection Maltanet that establishes the connection via Local Area Connection which is connected to the DSL modem.

Before everything worked just fine. Now this just happened!

Thanks again for your help!
 
ok, try this:

go to the services again and stop the 'dns client' service and try again with all computers.
if this doesn't work open a command line prompt on the host system and type in this:
ipconfig /release
then wait for the response and type in this:
ipconfig /renew
then try again to connect to the internet with all computers.

1 question: does your provider use proxy servers? means do you have to use a proxy server to connect to the internet?
 
Ok i solved the problem of Could not flush the DNS Resolver Cache: Function Failed During Execution. by using this command in the CMD:

REG ADD HKLM\SYSTEM\CurrentControlSet\Services\Dnscache /V Start /T REG_DWORD /F /D 2

It now works and even the repair function doesn't stop at Clearing DNS Cache.

However the problem still persits :(
 
mscrx said:
ok, try this:

go to the services again and stop the 'dns client' service and try again with all computers.
if this doesn't work open a command line prompt on the host system and type in this:
ipconfig /release
then wait for the response and type in this:
ipconfig /renew
then try again to connect to the internet with all computers.

1 question: does your provider use proxy servers? means do you have to use a proxy server to connect to the internet?
Click to expand...

Tried everything but still with no success. My ISP does not use Proxy Server.

However as i previously told you i fixed it and now the DNS can flush.
 
Here it is:

Windows IP Configuration

Host Name . . . . . . . . . . . . : BACKUP
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : mshome.net

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : VIA Compatable Fast Ethernet Adapter
Physical Address. . . . . . . . . : 00-13-D4-BC-C2-EB

Ethernet adapter Wireless Network:

Connection-specific DNS Suffix . : mshome.net
Description . . . . . . . . . . . : RT73 USB Wireless LAN Card
Physical Address. . . . . . . . . : 00-0E-2E-DB-C5-52
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.0.68
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 192.168.0.1
Lease Obtained. . . . . . . . . . : Monday, December 24, 2007 2:16:03 PM
Lease Expires . . . . . . . . . . : Monday, December 31, 2007 2:16:03 PM
 
what bugs me in this config is: DNS Suffix Search List. . . . . . : mshome.net
did you set this up?
 
mscrx said:
what bugs me in this config is: DNS Suffix Search List. . . . . . : mshome.net
did you set this up?
Click to expand...

Can this be related with the Workgroup which as default is mshome? It is not mshome.net however.
 
ok, I was wrong. mshome.net should be there on the guests for ics.
can you open the C:\WINDOWS\system32\drivers\etc\hosts (no extension) with an editor such as notepad and check if you find your guests computer names there?
 
mscrx said:
ok, I was wrong. mshome.net should be there on the guests for ics.
can you open the C:\WINDOWS\system32\drivers\etc\hosts (no extension) with an editor such as notepad and check if you find your guests computer names there?
Click to expand...

They are not listed there. I'm assuming that is blacklist of hosts right? It is filled with some Spybot values that it uses for immunization however it does not have the guest systems in it.
 
no its not a black list but it can be used (by spybot sd) to reroute bad internet sites to harmless network addresses (most likely 127.0.01 - localhost).
as far as I know you need to specify the guest systems in the hosts file of your host system to have them ready for ics.
try like this:

192.168.0.68 BACKUP.mshome.net

add this line after the 127.0.0.1 localhost entry and keep the number of blank lines before the spybot list begins!

the space between the ip address and the computername has to be a tab, not just a blank space!
you should also make sure to always use the same ip address for the guests, otherwise the hosts get mixed up.
 
Done but still have the same Timeout Problem. I have also identified the file hosts.ics which contains:

# Copyright (c) 1993-2001 Microsoft Corp.
#
# This file has been automatically generated for use by Microsoft Internet
# Connection Sharing. It contains the mappings of IP addresses to host names
# for the home network. Please do not make changes to the HOSTS.ICS file.
# Any changes may result in a loss of connectivity between machines on the
# local network.
#

192.168.0.68 BACKUP.mshome.net # 2007 12 1 31 14 1 3 998
192.168.0.94 joe.mshome.net # 2007 12 1 31 14 0 48 76
192.168.0.1 REOHIX.mshome.net # 2012 12 6 22 14 3 41 842

Hope that gives additional background to work about
 
It also updates correctly. I have unplugged the the Wireless adapter on the BACKUP system and the HOSTS.ICS reflects the new IP Correctly:

# Copyright (c) 1993-2001 Microsoft Corp.
#
# This file has been automatically generated for use by Microsoft Internet
# Connection Sharing. It contains the mappings of IP addresses to host names
# for the home network. Please do not make changes to the HOSTS.ICS file.
# Any changes may result in a loss of connectivity between machines on the
# local network.
#

192.168.0.141 BACKUP.mshome.net # 2007 12 1 31 14 24 46 842
192.168.0.94 joe.mshome.net # 2007 12 1 31 14 20 48 623
192.168.0.1 REOHIX.mshome.net # 2012 12 6 22 14 24 46 842
 
I am sorry to say but I run out of ideas on this. it looks like everything is set up ok. the only thing is the failed dns servers in the netdiag which I wasn't able to ping or tracert as well.
not sure where to look next
 
Update:

File sharing between the systems does not work. When i am attempting to access the shared files It ask for a password! How come? I do not have any network or system password.

Regards,
David
 
A network game works, they locate each other however file sharing is asking for a password.

Internet gives timeout error and not a server not found like when the Wireless adapter is unplugged.

Please Help :(
 
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