Win 7: Unidentified Network - No Internet Access

Hi All,

I have a custom-built new PC running Windows 7 Ultimate 64 bits, and was running great until today for no obvious reason I got this "Unidentified Network" and "No Internet Connection" error. My PC is connected to D-Link switch, which is then connected to the Trendnet router which has the internet connection. I Google and tried several things to fix the issue that seems related to my Intel 82567LM-2 network adapter:

- Disable IP V6
- Uninstall driver, restart to re-install
- Install latest driver from Intel
- Disable Bonjour and remove QuickTime (just to make sure)
- Add some registry value based on similar Vista problem Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers
- connect PC directly to router
- Bang my head on the desk

Nothing worked. Any suggestions are highly appreciated.

Hi bashar, have you tried doing a restore point?

Switch

why the switch and router do you have more PC's running than the router can handle

This is supposed to help with Intel network adaptor problems.
Network Connectivity - Unable to uninstall network adapter drivers and/or teams

This should help get the correct drivers for your Intel adaptor.
LAN: Intel® PRO Network Connections Driver for Intel® Desktop Boards for Windows 7*

Guys, the OP has said that he has his machine working fine till today. This implies, there was nothing wrong with his setup or driver that we can see (or can't see). The error comes about could be due to new changes made to the machine (this we need to establish if it's the case). Best way to undo these changes (if that's the case) is to do a system restore and then go from there.

System Restore

system restore should be used as a last resort always try to find a cause and solution first, you should not get into the habit of doing a system restore every time your computer hiccups system restore can compound existing issues

computersplus said:

system restore should be used as a last resort always try to find a cause and solution first, you should not get into the habit of doing a system restore every time your computer hiccups system restore can compound existing issues

Click to expand...

That is not always correct computersplus. You can save alot of time if you do it before getting into more mess. Currently his setup is clean, and for something to used to work and then not work, we just don't know what the cause is (it can be 100 things). Trying to blindly troubleshoot can get him into more mess. You cannot troubleshoot if you don't know what changes he has made that may cause the issue. Guess work is not a good thing to do in this situation.

troubleshooting

well if that's the case you should never try to troubleshoot at all just restore

You are correct in saying restore should be one of the last things to do. And you are also correct in thinking it's good IT practice to try and find the root cause of the issue rather than find a cheap way out. This i will agree 90% of the time.

In this particular situation, something had changed his system. We just don't know enough to be saying it's a system/router/modem issue. For what we know it could even be an ISP issue.

In any event simply resetting the router should fix the problem if there is nothing wrong with the adaptor. If the Op hasn't tried that yet he should.

Here is the problem with system restore.... what if it restores to a point to before he wants?? Then it takes away from other things and creates more problems. You can never tell when his computer created that restore point or if a restore point was made after the problem was occured and still won't fix it.

Nothing wrong with troubleshooting things.... you got to break things before you fix them... spend money to make money... you know all those over used phases....

If his setup is fine which by the way if I call my cable company and they treat me like an idiot. I will go down there and bash their head against the table for reading off a computer screen.

Probaby something that was installed with windows update...that usually stays on all the time and updates on its own.. I would definitly check that first. Sometimes check his cable modem to see if it had been updated or any other hardware had been recently updated first...

If he has a firewall, that is always doing daily updates and pushes... may have changed some settings...

Do you have dynamic ips or static ips on your network? I would definitly change over to static that way we can ping the computers to make sure those work and then we can finally work on the router... we have to do process of elimination.

Thanks, solved.

Thanks for all the replies, and thanks chev65 for the tip I should've tried first. Restarting the router and switch solved the problem!

Just for the record for future readers, yes I tried restore up to two days before. There isn't much of change going with my machine, I was just using it for reading and browsing. So two days back was the last update, and that didn't solve the problem.

As to whether it's good to jump to restores, i think it depends on how annoying this no internet is and how much you can tolerate it .

I have a router and switch as I have several networked devices running, and my old router was slow so I got switch for internal fast communication.

Thanks again guys... You saved me!

Well that's good experience. I must say restarting the router surprised me, cos usually if you haven't made any changes to the hardware, it usually doesn't produce errors. If restarting the router did work, it must have also been a modem/ISP connection error. I get alot of internet access errors, and most of the time it's the ISP rebooting their servers or something to that effect.

Solved it is!

aem said:

Well that's good experience. I must say restarting the router surprised me, cos usually if you haven't made any changes to the hardware, it usually doesn't produce errors. If restarting the router did work, it must have also been a modem/ISP connection error. I get alot of internet access errors, and most of the time it's the ISP rebooting their servers or something to that effect.

Solved it is!

Click to expand...

Yeah surprised me too. What I didn't explain was that I was able to connect through my MacBook, so it wasn't ISP, or even if, MacBook was able to recover.

bashar said:

Thanks for all the replies, and thanks chev65 for the tip I should've tried first. Restarting the router and switch solved the problem!

Just for the record for future readers, yes I tried restore up to two days before. There isn't much of change going with my machine, I was just using it for reading and browsing. So two days back was the last update, and that didn't solve the problem.

As to whether it's good to jump to restores, i think it depends on how annoying this no internet is and how much you can tolerate it .

I have a router and switch as I have several networked devices running, and my old router was slow so I got switch for internal fast communication.

Thanks again guys... You saved me!

Click to expand...

I'm glad the reset worked for you. When in doubt reseting the router is usually the first thing I do which is why it was one of the first things I mentioned. Lets not lose track of where the advice to reset the router came from. I give credit where credit is due and in this case I think I made the correct call.

The only reason I tried fixing the adaptor in my first post is because the Op seemed to think that is where the problem was.

Using system restore would not be an option for me, due to past experiences I just don't trust it.

I usually work from the outside in > router> drivers> system, that is just what works around here.

hello there! im just a newbie here, and i really need help so bad... i just got my new pc 6 days ago, and its just on d 3rd day that i tried the internet connection due to work sched. and i was worried that im messing up my pc... im always having this yellow triangle icon everytime i connect to internet, which indicates unidentified network. i dont know what to do, please help... my pc is running on windows 7 home premium (version 6.1.7600) im using an ethernet cable for internet. thanks in advance to everybody here... God bless!