Windows Gets a Default Gateway

KB ID 0000332 


Seen on Windows 7 but can also occur on Vista, I had this problem a while ago and fixed it then it reoccurred this morning (after I’d spent a morning on a client site changing my IP address a few times. As soon at I got back to the office the machine picked up an IP address form DHCP with the correct default gateway, but sat above that was a default gateway of

I could not ping anything outside my network either.


After some “Googling” it turns out this problem is caused the the Apple “Bonjour Service” as I detest iTunes and have no Apple software I was confused. It Seems that Adobe CS3 (Creative Studio) installs it, (Thought CS4 does not).

Quick Fix (though not permanent)

1. Start > Run > cmd {enter}

2. Issue the following command,

route delete gateway

Permanent Fix

1. Firstly make sure that Bonjour IS your problem look for the following,

C:Program FilesBonjourmDNSResponder.exe or C:Program Files (x86)BonjourmDNSResponder.exe (if your x64 bit I’m not sure?)


2.If is is there look to find the service that running it, (Start > Run > Services.msc).

In my case the service was called,


Catchy eh? I discovered that is caused by an install error.


broken bonjour

Is fixed with these commands;

fix bonjour service

3. Now I can see it correctly,

bonjour service

Note: Some forums report that the “National Instruments mDNS Responder Service” also used the same system and causes this problem.

4. You can simply stop and disable the service if you wish, or you can remove it by, running the following command,

x32 bit

“C:Program FilesBonjourmDNSResponder.exe” -remove

x64 bit

“C:Program Files (x86)BonjourmDNSResponder.exe” -remove

remove mdns responder

5. Navigate to, C:Program FilesBonjour OR C:Program Files (x86)Bonjour And rename mdnsNSP.dll to mdnsNSP.old


6. Reboot the affected machine.

7. Then delete the Bonjour folder.

remove bonjour


Related Articles, References, Credits, or External Links

National Instruments Microsoft

Author: Migrated

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