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Windows 7: A solution to "Unknown network - no connection to Inter

10 Dec 2009   #11

win 7

how about just with adobe's flash and reader set? i have the same symptoms> win 7 - wired connection simply not working

but nothing bonjour related, or cs on my system?

My System SpecsSystem Spec
15 Feb 2010   #12

Windows 7 64 Pro

Only recently, I have this same issue in Win 7 64 Pro. And yes, I recently installed Adobe Photoshop. I would have to say that the issue lines right up with the timeline in which I installed Photoshop. Thanks for figuring this out man! I will try your solutions.

toxicseagull ... my guess is that you may have a different issue. The issue that this forum discusses is users getting "unknown network" showing up and then internet access becomes unavailable. We than disable and re-enable network card and it starts working again ... only to fail again later when "unknown network" shows up once again.
My System SpecsSystem Spec
17 Nov 2010   #13

Windows 7 64 bit

Hi all. Newbie here.

Did anyone have this problem after installing Adobe CS5? I have the exact problem where the unknown network shows up and I lose internet access. Disabling and enabling the network adaptor temporarily fixes it. I tried to stop and disable the Bonjour Service but it just wasn't there. NOTE: I'm running Windows 7 64 Ultimate and this did fix my problem on my other PC running the same version of Windows. I've installed CS5 on both systems, no iTunes on either PC, but only one had the Bonjour service listed - the one I was able to fix.

I haven't tried the other fix yet with the manually assigned IP and DNS, but I will try tonight. I feel dumb asking this: should I use the IP and DNS value listed when I open ipconfig?
My System SpecsSystem Spec

17 Nov 2010   #14

Windows 7 Ult, Windows 8.1 Pro,

For any of you who need to remove bonjour from your system, here is how you disable the service and uninstall bonjour for good.

You would be far better served by getting rid of bonjour rather than doing any changes to your IPv4 properties. Bonjour is really just Mac's version of universal plug and play which Windows 7 already has.

To disable bonjour:
Run MsConfig

Under the Services tab uncheck the service called "may say Bonjour then ##Id_String1.6844[... and then a bunch of numbers]" by Apple, disable the service.

To remove bonjour:
1. Navigate to C:\Program Files\Bonjour
2. Rename the mdnsNSP.dll file in that folder to mdnsNSP.old "this should make it easier to delate the file"
3. Restart your computer
4. Delete the Program Files\Bonjour folder
My System SpecsSystem Spec
18 Nov 2010   #15

Windows 7 64 bit

Thanks Chev65! I'll try your solution. It looks like solid permanent solution.
My System SpecsSystem Spec
20 Dec 2010   #16

Windows 7 Ultimate X32
The problem is the CS3

Quote   Quote: Originally Posted by Dante View Post
I found a solution to the problem "Unknown network - no connection to Internet". For me, this problem seemed to develop after I had a problem getting the drivers for both my printers set up correctly. I don't know if that was related to the cause, but after that every time I started Windows 7 I could not connect to the internet. The 'troubleshooter' couldn't find or fix the problem. I could fix it by disabling, then re-enabling the network adapter through the control panel. However, that only fixed the problem until the next time I started Windows.

What permanently solved the problem:
1. Go to Device Manager
2. Find your ethernet network adapter, then right-click on it. Select the option "Uninstall"; this is different from the option disable. You will get a message asking 'are you sure?' click yes, you are sure.
3. Actually, that's it, you are fixed. After doing the above, your network card is listed as unknown device. Don't worry. Restart Windows, it will recognize your network card as a new device and do a fresh install of the correct driver.

Anyway, that worked for me. It is actually an old Windows trick to get the system to fix itself, even when it otherwise tells you the driver is working ok.
This worked on my system; your mileage may vary. I have a Sony Vaio RC-110G, intel dual core processor, 2 GB ram, running Windows 7 RTM Ultimate edition, none of which should really matter. The network 'card' is onboard Intel Pro/1000 PM network adapter. I was going to search for a new driver at Intel's site when the above trick dawned on my crusty old brain.

The problem is the Adobe Cs3, it has to be uninstalled or at least, the BONJOUR service needs to be deactivated.
I have Cable Modem and I tried EVERYTHING before uninstalling CS3.
1 ipconfig /release and then renew, but after restart, the unknown network was there, again.
2 Deactivate and Reactivate the Local Area NEtwork, but after reboot, the issue was there again.
3 Uninstalled the Network Adapter drivers, and worked for 1 reboot, but after the 2nd, issue arises again.
4 Deactivated protocol TCP IPV6, with no effect.
5 Puting static IP, wich worked perfectly, until my ISP switches it to a new one, at least once a week, so at
that time, had to go back to dinamic, then copy the config from the ipconfig /all in CMD, and then re enter the
static ip.
THEN UNINSTALLED the CS3 and VOILA, issue resolved.
My System SpecsSystem Spec
30 Apr 2011   #17

Windows 7 Ultimate

thanks Dante this solved my problem
My System SpecsSystem Spec
27 Jan 2012   #18

windows7 homepremium 32bit

For anyone still trying to solve this - it was found that my Laptop was not assiging IP addresses automatically. Once this was corrected it was fixed. Don't know why this occurred. One morning it was fine, 2 hrs later it wasn't. Hope this helps someone.
My System SpecsSystem Spec
30 Sep 2015   #19

Windows 7

Quote   Quote: Originally Posted by Dante View Post
...I found what seems to be the *real* solution based on info from other posts here. The problem in fact was Bonjour...
THANK YOU! I had NO idea what was going on with my Acer Aspire RevoCenter RC111 running Windows Home Server 2011. I tried everything I could think of and was even looking in the BIOS to see if some LAN boot setting was causing this. I could get into my router's setup page but not to the internet. One odd thing is it would only do it if the ethernet cable was plugged in during boot. If I let the machine boot into windows and then plug in the cord the issue would not happen. I stumbled onto this and after looking realized the server came factory installed with the Bonjour Printer Wizard. I uninstalled this, rebooted and it worked perfect.
My System SpecsSystem Spec

 A solution to "Unknown network - no connection to Inter

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