HELP: lost net connection

[Andrew Wan]

In our company we have a Windows 2000 Small Business Server running as our
proxy/gateway to the internet for our internal LAN.

It seems everytime we reboot this 2000 Server, the whole internal LAN
doesn't get any internet connection. Though I was able to ssh out, but it
was unstable. Everything else no one can get access to (web sites, emails,
etc.)

We can access internet fine on the 2000 Server PC.

DNS, DHCP, Routing & Remote Access are all started.

What else do we need to do to get internet access back for the LAN?

 

[Pegasus \(MVP\)]

In our company we have a Windows 2000 Small Business Server running as our
proxy/gateway to the internet for our internal LAN.

It seems everytime we reboot this 2000 Server, the whole internal LAN
doesn't get any internet connection. Though I was able to ssh out, but it
was unstable. Everything else no one can get access to (web sites, emails,
etc.)

We can access internet fine on the 2000 Server PC.

DNS, DHCP, Routing & Remote Access are all started.

What else do we need to do to get internet access back for the LAN?

Sounds like you have incorrect DNS or Default Gateway settings.
However, without you providing full details of your network
configuration and your various settings, it is not possible to tell you
exactly what's wrong.

 

[Andrew Wan]

Event Type: Error
Event Source: ipnathlp
Event Category: None
Event ID: 32006
Date: 23/03/2007
Time: 11:29:10
User: N/A
Computer: SERVER
Description:
The Internet Connection Sharing service could not start because another
process has taken control of the kernel-mode translation module. This may
occur when the Connection Sharing component has been installed in the
Routing and Remote Access Manager. If this is the case, please remove the
Connection Sharing component and restart the Internet Connection Sharing
service.






Event Type: Error
Event Source: ipnathlp
Event Category: None
Event ID: 32007
Date: 23/03/2007
Time: 11:29:13
User: N/A
Computer: SERVER
Description:
The Connection Sharing component could not start because another process has
taken control of the kernel-mode translation module. This may occur when
Internet Connection Sharing has been enabled for a connection. If this is
the case, please disable Internet Connection Sharing for the connection in
the Network Connections folder and then restart Routing and Remote Access.




Event Type: Error
Event Source: RemoteAccess
Event Category: None
Event ID: 20106
Date: 22/03/2007
Time: 19:08:46
User: N/A
Computer: SERVERSB
Description:
Unable to add the interface Internal with the Router Manager for the IP
protocol. The following error occurred: The parameter is incorrect.

Data:
0000: 57 00 00 00 W...





This is some of the events thrown up in Event Log. I don't know what we did,
but internet is back up now, from 11:30am during working hours. Like I said,
don't know what we did. Could've restarted that Routing & Remote Access. But
never know for sure.

 

[Pegasus \(MVP\)]

Don't use your sever as an Internet gateway; use your
router instead.

 

[Andrew Wan]

What do you mean? Our company has hundreds of PCs and our server has to be
our masqurade/proxy server to connect our hundreds of PCs. Our router only
has 4 connection sockets.

There are two network connections in our server called:
External Connection (has external IP/subnet mask, default gateway, DNSs
setup)
Internal LAN Connection (uses 192.168.100.1, blank default gateway, and uses
DNSs setup_

 

[Andrew Wan]

Here is our Services list. I only show you services that are started now:

What services is most important and needed for our proxy/gateway server?


Name Status Startup Type Log On As
Alerter Started Automatic LocalSystem
Asus Network Utility Agent 1.0 Started Automatic LocalSystem
Ati HotKey Poller Started Automatic LocalSystem
Automatic Updates Started Automatic LocalSystem
Cisco Systems, Inc. VPN Service Started Automatic LocalSystem
COM+ Event System Started Manual LocalSystem
Computer Browser Started Automatic LocalSystem
DHCP Client Started Automatic LocalSystem
DHCP Server Started Automatic LocalSystem
Distributed File System Started Automatic LocalSystem
Distributed Link Tracking Client Started Automatic LocalSystem
Distributed Link Tracking Server Started Automatic LocalSystem
Distributed Transaction Coordinator Started Automatic LocalSystem
DNS Client Started Automatic LocalSystem
DNS Server Started Automatic LocalSystem
EpsonBidirectionalService Started Automatic LocalSystem
Event Log Started Automatic LocalSystem
File Replication Service Started Automatic LocalSystem
File Server for Macintosh Started Automatic LocalSystem
FTP Publishing Service Started Automatic LocalSystem
IIS Admin Service Started Automatic LocalSystem
Intel NCS NetService Started Manual LocalSystem
Internet Authentication Service Started Automatic LocalSystem
Intersite Messaging Started Automatic LocalSystem
IPSEC Policy Agent Started Automatic LocalSystem
Kerberos Key Distribution Center Started Automatic LocalSystem
License Logging Service Started Automatic LocalSystem
Logical Disk Manager Started Automatic LocalSystem
Logical Disk Manager Administrative Service Manual LocalSystem
Messenger Started Automatic LocalSystem
Microsoft Firewall Started Manual LocalSystem
Microsoft H.323 Gatekeeper Started Automatic LocalSystem
Microsoft ISA Server Control Started Automatic LocalSystem
Microsoft Web Proxy Started Automatic LocalSystem
Net Logon Started Automatic LocalSystem

Network Connections Started Manual LocalSystem
Network News Transport Protocol (NNTP) Started Automatic LocalSystem
NT LM Security Support Provider Started Manual LocalSystem
Perforce Started Automatic LocalSystem
Plug and Play Started Automatic LocalSystem
Print Server for Macintosh Started Automatic LocalSystem
Print Spooler Started Automatic LocalSystem
Protected Storage Started Automatic LocalSystem
Remote Access Auto Connection Manager Started Automatic LocalSystem
Remote Access Connection Manager Started Automatic LocalSystem
Remote Procedure Call (RPC) Started Automatic LocalSystem
Remote Procedure Call (RPC) Locator Started Automatic LocalSystem
Remote Registry Service Started Automatic LocalSystem
Removable Storage Started Automatic LocalSystem
Routing and Remote Access Started Automatic LocalSystem
RunAs Service Started Automatic LocalSystem
Security Accounts Manager Started Automatic LocalSystem
Server Started Automatic LocalSystem
Shared Modem Services Started Automatic LocalSystem
Simple Mail Transport Protocol (SMTP) Started Automatic LocalSystem
Simple TCP/IP Services Started Automatic LocalSystem
SNMP Service Automatic LocalSystem
SoundMAX Agent Service Started Automatic LocalSystem
System Event Notification Started Automatic LocalSystem
Task Scheduler Started Automatic LocalSystem
TCP/IP NetBIOS Helper Service Started Automatic LocalSystem
TCP/IP Print Server Started Automatic LocalSystem
Telephony Started Manual LocalSystem
Telnet Manual LocalSystem
Terminal Services Started Automatic LocalSystem
Windows Internet Name Service (WINS) Started Automatic LocalSystem
Windows Management Instrumentation Started Automatic LocalSystem
Windows Management Instrumentation Driver Extensions Started Manual LocalSystem
Windows Time Started Automatic LocalSystem
WMDM PMSP Service Started Automatic LocalSystem
Workstation Started Automatic LocalSystem
World Wide Web Publishing Service Started Automatic LocalSystem

 

[Pegasus \(MVP\)]

The usual connection method goes like so:

Internet - Modem - Firewall - Switch - Servers, PCs

In other words, every device connected to the switch
has access to the Internet. ICS is mainly used where
a dial-up connection is made by single PC.