Ipnat.sys related error on Win2003 Server

0 pts.
Tags:
Access control
Browsers
Desktops
filtering
Firewalls
Forensics
Hardware
Incident response
Intrusion management
Management
Microsoft Windows
Network security
Networking
OS
Patch management
Security
Servers
Software
SQL Server
SSL/TLS
Tech support
VPN
Web security
Wireless
Happy 2006 to you all! One of my customers is getting a strange error since someone disabled (deleted actually!!) the Terminal Server service on their Windows 2003 Server SP1. The error that pops up is: "Windows Firewall cannot run because another program or service is running that might use the network address translation component (Ipnat.sys)", and the VPN clients can't access the LAN anymore. I have Googled this error and all answers seem to point to a NAT conflict with the Windows Firewall or the Internet Connection Sharing. However they do NOT have the Windows Firewall or the Internet Connection Sharing enabled. Microsoft Support website solutions either related only to WinXP or to VPN clients connecting via IIS, which is not the case here (they are SonicWall VPN clients connecting into a SonicWall box). The closest article I've found is: http://support.microsoft.com/?kbid=897651 but it doesn't quite apply here. Any ideas what this could be and/or where I could get more info? Many thanks in advanced, H.
ASKED: January 11, 2006  10:34 AM
UPDATED: February 23, 2006  2:04 AM

Answer Wiki

Thanks. We'll let you know when a new response is added.

Hedge,

I don’t have a definitive answer for what is wrong, but do have a suggestion for a possible fix. You mention that someone deleted the Terminal Server service. I would reinstall that, and then disable rather than delete it. Hopefully this will put back what is needed and get things working again.

best – Doug

Discuss This Question: 7  Replies

 
There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when members answer or reply to this question.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
  • Sachdevadeepak
    Hedge, This error comes during intializing of firewall and within that setup routing or remote access service is also enable ,once u disable the routing or remote access service this error will get rectified
    0 pointsBadges:
    report
  • Sachdevadeepak
    Hedge, This error comes during intializing of firewall and within that setup routing or remote access service is also enable ,once u disable the routing or remote access service this error will get rectified. Deepak Sachdeva
    0 pointsBadges:
    report
  • Hedgehog
    Hi Deepak Thanks for the suggestion, but we have tried disabling both services and error still appears. Any other suggestions? Thx H.
    0 pointsBadges:
    report
  • Hedgehog
    Hi Deepak Thanks for the suggestion, but we have tried disabling both services and error still appears. Any other suggestions? Thx H.
    0 pointsBadges:
    report
  • Sachdevadeepak
    Hi hedgehog, Reinstall the Service pack 1 on Windows 2003 Server. Thanks Deepak Sachdeva
    0 pointsBadges:
    report
  • MaximTretyak
    Hi Was reinstalling SP1 successfully resolve this trouble? I have suddenly catch the same. -- All the best, Maxim Tretyak
    0 pointsBadges:
    report
  • Hedgehog
    [...] someone disabled deleted actually!! the Terminal Server service on their Windows 2003 Server SP1.http://itknowledgeexchange.techtarget.com/itanswers/ipnatsys-related-error-on-win2003-server/ ipnat.sys - File InformationThis entry has information about the file ipnat.sys. ... Original [...]
    0 pointsBadges:
    report

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Thanks! We'll email you when relevant content is added and updated.

Following