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kj2020
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Windows 7 Adding a 2nd "Unidenditifed Network"

Hello,

I am having an issue with my home machine where Windows 7 seems to be adding a 2nd (Public) "Unidentified Network" which randomly appear sometimes on startup and makes it impossible for me to connect to the internet.  At times it is not there, and I only have my original "Homegroup" network which does allow an internet connection.  If I shut down and power-cycle the modem & router--sometimes 2 or 3 times--eventually the Unidentified Network goes away and everything works fine.

I have tried to delete this network when I see it but it does not show up on the list.

Any ideas would be much appreciated.

Thanks,
KJ
Windows NetworkingWindows 7Networking

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John

8/22/2022 - Mon
John

Those networks will show up in Windows 7 if they are there. I see them on my machine just now, and of course, it is out of your control.

The best way to fix this is to secure your wireless router with WPA/PSK security or better. Then put those parameters in your Windows 7 profile and make that your default profile. Then the unidentified networks should not cause you any problem. ... Thinkpads_User
kj2020

ASKER
Thanks - the router is set to 'WPA Personal' security.  I'm not sure what you mean by putting the parameters in my Windows 7 profile (sorry--fairly new at this).
-KJ
John

You need to make the settings in your Windows 7 wireless profile (SSID, WPA key) the same as your router.  You only want to connect to your own wireless router, not someone else's. ... Thinkpads_User
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kj2020

ASKER
The router is wired to this desktop unit (it does not have wireless) so I do not seem to have the ability to create a wireless profile. I have 2 laptops which use the router to access the internet but the desktop does not.
John

Ok - Desktop: It has no wireless and is connected to the router by a wire. You said router router is set to WPA so you must be able to access the router via the desktop computer (web browser -> router IP address). If this is the machine adding the unidentifed public network, then go into Control Panel -> Network and sharing center and review (and adjust) the options under home group networking.

Before that, however, check your desktop that IE or whatever browser can access the internet. You suggested no, but check again because Windows 7 easily gets internet access. If no, open a command prompt (start -> run -> cmd) and type ipconfig (enter) and let us know what IP address you get.
... Thinkpads_User
kj2020

ASKER
OK, I rebooted  and the "unidentified network" showed up, and I'm unable to access the internet in a browser.  In the Network Center, I am unable to delete this network and I'm not sure what other adjustment I should/could make to it.  The Home Network that is always present has no connection either.  If I boot the machine and the Unidentified network isn't there, everything is fine.

When I did an IPConfig I received the following info:

IPv4 Address:  192.168.1.101
Default Gateway: 0.0.0.0.
                             192.168.1.1

I'm not sure if it's relevant, but the laptops are able to connect even when the desktop is not.

Thanks,
KJ
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John

The IP address looks fine and means you have connected to the router. That means the basic network structure is probably OK.

So did this machine ever connect to the internet? If not, open Control Panel -> Internet Options and under Advanced, do a Reset to reset Internet Explorer. and see if that helps.  If it did once connect to the internet, the computer may have a virus that is preventing internet access. ... Thinkpads_User
kj2020

ASKER
It connects to the internet daily...just not when the additional network is present.  I have to reboot several times until that goes away and then it's fine.

I doubt it's a virus since it's had this behavior since day 1 and the virus software has always been up-to-date.  I had thought it was fixed a couple of times by updating the driver and cloning the Mac address to the router (at the suggestion of others), but it was good for a day or two and then reverted back.

I appreciate your help.
John

I really do not understand where this additional network is coming from.

I thought it was a wired or wireless physical network (someone else's wireless signal for example), but you have said no to that.

Can you confirm:
(a) is it a network signal (as I just described)? Yes or no
(b) is it a file sharing error (drive mapping error)? Yes or no
(c) can you paste the actual error screen in here?
(d) this is happening on a Desktop / Windows 7 / Wired machine with no wireless card (are you sure)?
(e) this is not happening on the laptop computers? Yes or no
(f) what Operating System is on the laptop computers?

Thank you for your assistance. ... Thinkpads_User
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kj2020

ASKER
Thank you, thinkpads, for sticking with this.  

My apologies, as I'm sure I'm not describing this effectively...this is obviously not an area of expertise for me!

I will try & address your questions:

(a) When I first start up the machine experiencing the problem, I see a yellow triangle with an exclamation point in the network icon in lower right side of the task bar. If I mouse over it, it shows two networks:  "Network 2" and "Unidentified Network", both indicating "No Internet Access".  If I open the Network & Sharing Center, I see that Network 2 is a Home Group, and the other is Public.  If I launch a browser, it states that it cannot display the page.  I've tried the trouble-shooter to no avail.  I have also tried to delete the Unidentified Network, but it doesn't even show up in the Merge/Delete dialog--only Network 2 shows up.  **If I reboot (usually rebooting the modem & router as well), eventually the "Unidentified Network" goes away and it shows only "Network 2" and I am able to connect to the internet with no problem.
(b) There does not seem to be a drive-mapping error.
(c) The only error I get is the typical "explorer cannot display the page" when I launch IE. (I'm actually using the machine now...so I would have to reboot & lose my connection to get the exact wording....Outlook cannot send/retrieve either when this happens)
(d) Dell XPS 8000, Windows 7, cable modem connected to routers' internet port, router connected to desktop machine.  I was told there is no wireless card on board. I used this same configuration previously with a desktop running XP but had to replace the machine.
(e/f) 2 laptops running XP connect to internet even when I am unable to on the desktop machine.

Many thanks,
KJ
John

Thank you.

Your answer (a) says it is a true physical network issue and your answer (b) confirms this.

I think there must be more than one Network Interface Card (NIC) in the Desktop machine. There is no other way for it to error out the way you describe.

Go to Computer -> Manage and open Device Manager (NIC). In the right side, open up Networks and there must be more than one NIC. What are they? And if one is wireless, try disabling it, restarting and see if that helps.

The XP machines (questions e/f) won't have anything to do with this.

Thank you for clarifying. ... Thinkpads_User
kj2020

ASKER
There seems to be only one:  Broadcom Netlink Gigabit Ethernet
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John

Thanks. I would say there is something wrong with the machine and the Windows 7 installation, I cannot imagine a way for it to say a NIC has no network access down in the system tray if there is no NIC to cause the error.

You can always try uninstalling and reinstalling the Broadcom driver, but I don't know if that will do anything.
... Thinkpads_User
John

Just as a thought: Does your router (or your modem) have a USB connection? And have you plugged in the USB connection to your desktop along with the ethernet cable from the desktop to the router?
... Thinkpads_User
kj2020

ASKER
Thank you Thinkpads...I really appreciate your persistence.  At least I know that my lack of understanding isn't preventing me from fixing the problem!  Since Windows 7 was pre-installed, I think I'll have to go back to the seller.

-KJ
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kj2020

ASKER
Problem is not exactly solved, but it seems that the most likely cause is a bad install of Windows 7.  Will explore with place of purchase
John

Thank you for the update. ... Thinkpads_User