A solution to "Unknown network - no connection to Inter

[Dante]

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.

 

[iseeuu]

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.

Welcome to Windows Seven Forums, Dante, and many thanks for posting your solution. No doubt others will run across similar problems and your post may help many.

That's why we are here, to help others become familiar with Windows 7!

Robert

 

[Dante]

addendum to my previous post

Thanks, Robert. Actually, the solution I described above only worked briefly for me, as I found out right after I posted. It still may be useful to someone else.
I found what seems to be the *real* solution based on info from other posts here. The problem in fact was Bonjour. This surprised me since I don't have iTunes on this machine. But I do have Photoshop CS3 and, sure enough, there is a Bonjour folder in Program Files. Oddly enough Bonjour is not listed in the Uninstall program list in the Control Panel.
Based on a post I found in the Wikipedia entry for Bonjour, it is quite hard to remove. I sidestepped this problem by just turning off the service that it installs. To do this, go Control Panel > Administrative Tools > Services. The first service in the list has this strange name:
“##Id_String2.6844F930_1628_4223_B5CC_5BB94B879762##”. This is the service that Bonjour installs.
Right-click on it, then click Properties. First you need to stop it, then change its Startup Type to disabled. After I did that, my network problem was fixed, and this time the fix seems to be persistent, maybe permanent.

Here's an odd aspect to this problem: the machine that had this network problem did not have iTunes and Bonjour was not in the list of installed programs. Now I have another machine (that I built myself) that has the identical version of Windows 7 and it has iTunes and PS CS3 installed and on that machine Bonjour does show up on the installed programs list, and that machine did not have any network/internet problems at all!
A mystery wrapped in an enigma. If I find out more, I will report it here.

 

[iseeuu]

Thanks, Robert. Actually, the solution I described above only worked briefly for me, as I found out right after I posted. It still may be useful to someone else.
I found what seems to be the *real* solution based on info from other posts here. The problem in fact was Bonjour. This surprised me since I don't have iTunes on this machine. But I do have Photoshop CS3 and, sure enough, there is a Bonjour folder in Program Files. Oddly enough Bonjour is not listed in the Uninstall program list in the Control Panel.
Based on a post I found in the Wikipedia entry for Bonjour, it is quite hard to remove. I sidestepped this problem by just turning off the service that it installs. To do this, go Control Panel > Administrative Tools > Services. The first service in the list has this strange name:
“##Id_String2.6844F930_1628_4223_B5CC_5BB94B879762##”. This is the service that Bonjour installs.
Right-click on it, then click Properties. First you need to stop it, then change its Startup Type to disabled. After I did that, my network problem was fixed, and this time the fix seems to be persistent, maybe permanent.

Here's an odd aspect to this problem: the machine that had this network problem did not have iTunes and Bonjour was not in the list of installed programs. Now I have another machine (that I built myself) that has the identical version of Windows 7 and it has iTunes and PS CS3 installed and on that machine Bonjour does show up on the installed programs list, and that machine did not have any network/internet problems at all!
A mystery wrapped in an enigma. If I find out more, I will report it here.

Again, thank your for your contrubution to Windows Seven Forums. Your posts will always be welcome.

Robert

 

[Berry]

Thanks, Robert. Actually, the solution I described above only worked briefly for me, as I found out right after I posted. It still may be useful to someone else.
I found what seems to be the *real* solution based on info from other posts here. The problem in fact was Bonjour. This surprised me since I don't have iTunes on this machine. But I do have Photoshop CS3 and, sure enough, there is a Bonjour folder in Program Files. Oddly enough Bonjour is not listed in the Uninstall program list in the Control Panel.
Based on a post I found in the Wikipedia entry for Bonjour, it is quite hard to remove. I sidestepped this problem by just turning off the service that it installs. To do this, go Control Panel > Administrative Tools > Services. The first service in the list has this strange name:
“##Id_String2.6844F930_1628_4223_B5CC_5BB94B879762##”. This is the service that Bonjour installs.
Right-click on it, then click Properties. First you need to stop it, then change its Startup Type to disabled. After I did that, my network problem was fixed, and this time the fix seems to be persistent, maybe permanent.

Here's an odd aspect to this problem: the machine that had this network problem did not have iTunes and Bonjour was not in the list of installed programs. Now I have another machine (that I built myself) that has the identical version of Windows 7 and it has iTunes and PS CS3 installed and on that machine Bonjour does show up on the installed programs list, and that machine did not have any network/internet problems at all!
A mystery wrapped in an enigma. If I find out more, I will report it here.

This was the first answer on my problem that actually works! I've had this problem occured when I also installed Adobe CS3 Suite and I couldn't find the bogus network thingy...
Thx again man, you've helped me from goin insane

 

[iseeuu]

This was the first answer on my problem that actually works! I've had this problem occured when I also installed Adobe CS3 Suite and I couldn't find the bogus network thingy...
Thx again man, you've helped me from goin insane

Welcome to Windows Seven Forums, Berry. We are glad you were able to find a solution here. If you haven't already, there is an extensive tutorial section for you to check out as well.

http://www.sevenforums.com/tutorials/257-windows-7-tutorial-index.html

Cheers!
Robert

 

[Berry]

Hi Robert, thx, much appreciated, found this website today and i'm goin to follow it, thats for sure!

 

[Rockeiro]

I solved the problem permanently by manually assigning my IP and my DNS servers. I actually had two Windows 7 computers do this and after tearing out my hair trying to figure out what this "Unknown Network" was, I came up with the old fallback... fixed IP addresses and DNS.

This is easier than you think and even if you don't know the DNS addresses for your IP provider, just put in your router/gateway address instead and it will forward your DNS addresses on to the provider for you.

 

[iseeuu]

I solved the problem permanently by manually assigning my IP and my DNS servers. I actually had two Windows 7 computers do this and after tearing out my hair trying to figure out what this "Unknown Network" was, I came up with the old fallback... fixed IP addresses and DNS.

This is easier than you think and even if you don't know the DNS addresses for your IP provider, just put in your router/gateway address instead and it will forward your DNS addresses on to the provider for you.

Thanks for posting, Rockeiro, and welcome to Windows Seven Forums! Glad to hear you got yours to work.

Happy Surfing!
Robert

 

[copernicus]

Bonjour "services" get installed during CS installation to help out with Adobe's Drive/Server/File manager on the chance that you'll be working with MACs on your network.

If you look through the installation setup during CS you'll see then.

 

[toxicseagull]

how about just with adobe's flash and reader set? i have the same symptoms> http://www.sevenforums.com/network-sharing/45726-win-7-wired-connection-simply-not-working.html

but nothing bonjour related, or cs on my system?

 

[rockonpearl]

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.

 

[LLCoolLS]

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?

 

[chev65]

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

 

[LLCoolLS]

Thanks Chev65! I'll try your solution. It looks like solid permanent solution.

 

[psenzanonna]

The problem is the CS3

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.
Regards.

 

[vlancsoft]

thanks Dante this solved my problem

 

[topcat52]

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.

 

[protivakid]

...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.