ics problem

[garnier jerome]

I'm having problems with internet connection sharing. For some time it is
not working anymore (it might have something to do with SP2, but
uninstalling it did not solve the problem). Internet on my host computer
works fine (adsl) works fine and an ip address is automatically assigned. I
enabled internet connection sharing, de- and reinstalled all drivers, de and
re activated internet connection sharing etc but the client computer does
not get any internet access although file sharing works fine.

Putting in the dns server and ip address manually is not an option because I
have no idea what DNS server I need to use. The IP address assigned to the
client is something like 169.245.x.x.

Firewalls are all deactivated and removed from the system and they are
definitely not the cause of the problem.

What could be the problem? Why is internet connection sharing not working
anymore?? Help is greatly appreciated.

 

[Doug Sherman [MVP]]

If the client has an IP of 169.254.x.x. and file sharing is working, then
ICS is not properly configured. Make sure you have enabled it on the
Advanced tab for the Local Area Connection corresponding to your ADSL
adapter. Do not enable ICS on the LAN adapter. See:

http://support.microsoft.com/kb/306126

Doug Sherman
MCSE, MCSA, MCP+I, MVP

 

[garnier jerome]

That's what I have done, but it doesn't work like this. On the connection to
my client computer there's no tab to activate ICS, only on the DSL
connection I can and have done so.

regards

 

[Doug Sherman [MVP]]

Make sure that the connections on the host are not bridged:

http://www.microsoft.com/resources/...xp/all/proddocs/en-us/hnw_bridge_install.mspx

Doug Sherman
MCSE, MCSA, MCP+I, MVP

 

[garnier jerome]

There's no bridge. But it says that there's only a limited or no connection
to the host (but file sharing is ok). What could be the problem?

 

[Doug Sherman [MVP]]

If file sharing works, I doubt that the limited connectivity message is
significant. Try manual configuration:

1. On host set IP to 192.168.0.1, subnet mask = 255.255.255.0, no default
gateway, no DNS server.

2. Client:

IP address - 192.168.0.2
Subnet mask - 255.255.255.0
Default Gateway - 192.168.0.1
DNS - on host open a command prompt and type:

ipconfig /all ENTER

Write down the DNS server(s) address listed for the ADSL connection and
enter this on the client computer.

Doug Sherman
MCSE, MCSA, MCP+I, MVP

 

[garnier jerome]

Thanks so much! It works now. But how can this be? Why doesn't it work
automatically?

thanks

 

[Doug Sherman [MVP]]

It's not that uncommon for the client not to get an IP now and then. But in
your case, even the host wasn't getting an IP from itself - much more
unusual. I'd suspect ICS or TCP/IP corruption, except everything works now;
so I'd quit while you're ahead.

Note - some ISPs change DNS server addresses now and then, so if this
connection fails in the future, run ipconfig /all on the host - you may have
to change the setting on the client.

Doug Sherman
MCSE, MCSA, MCP+I, MVP