Windows 10: No internet connection after upgrade

For those with connections problems try this: (this has worked for me many times, it may not work for you, so try at own risk)

1. Download your ethernet or wireless card Driver but don't install it yet.
2. Next go to device manager and search for your networking card and Uninstall it, also mark the check box that says Uninstall drivers.
3. In the same device manager window, press the button to scan for hardware changes. Restart pc. If this doesn't work go to step 4.
4. Go to device manager and search for your networking card and Uninstall it, also mark the check box that says Uninstall drivers.
5. Now install the drivers from step 1. Reboot pc.

Come back here and post result please.

 

I was having the same problem, no internet after upgrade. I was using ShrewSoft VPN in windows 8.1.
I found this post After upgrading from Windows 8.1 to Windows 10, no wireless networks - Microsoft Community that fixed the problem.
I needed to delete a registry key for DNI_DNE and rebooted and everything worked. Good Luck!

 

Uninstalling the cisco vpn client when in windows 8.1 then upgrading it back to Windows 10 Fixed the network problems.

 

Uninstalling the cisco vpn client when in windows 8.1 then upgrading it back to Windows 10 Fixed the network problems.

 

Check your IP address. What led me to find out the AI suite was causing the problem was that I noticed my IP address was something way off from what I have set in my router. Most routers start 192.168.x.xx and mine was something like 196.98.174.122. Even after manually changing the address the network would not work. You might even try going into device manager and scan for hardware changes to see if it finds it. I'm upgrading my HP Touchsmart 660 at the moment and will see if my wireless card disappears.

 

After trying to install 3 times & I finally got it to load I then discovered no Internet either by Wi Fi or Ethernet - Why do Microsoft issue important software with these known issues - I have no obvious VPN software installed so ended up reversing to Windows 7 - what a waste of time

 

You seem to have solved a lot of dilemmas here, so here is one for you....
I Cant revert back to 8.1 because i cleaned system after upgrade.....which took away my option.

what should i do?

 

I hope this advice helps someone, I spent days scouring threads trying to find an answer for why my Windows 10 wireless worked flawlessly for a full 48 hours after I upgraded and then just stopped! Here's what happened to me and how I fixed it.

OS:
Windows 10 Pro 64Bit

WIFI NETWORK ADAPTERS USED:
Qualcomm Atheros AR5BWB222 Wireless Network Adapter (Built into Motherboard)
Netgear WNDA3100v2 N600 Wireless Network Adapter (USB Wifi Dongle)

SYMPTOMS:
* Qualcomm Wifi worked flawlessly for almost 48 hours after upgrading from Win7 to Win10. No hitches.
* On 3rd day, booted system and everything seemed normal, Wifi connected, no yellow exclamation mark. Internet detected and flowing normally according to the Qualcomm Wireless adapter... BUT!
* All internet reliant apps not working e.g Steam, Team Viewer, Spotify, Dropbox, AV updates.
* Go to any browser; Windows Edge, Chrome or Firefox, cannot browse to any website.
* Checked 'Device Manager' All adapters functioning without issue. Un-installed & Re-installed all just in case.
* Installed Netgear USB Wifi adapter to test, same symptoms (And Netgear state it's Windows 10 compatible)
* Tried installing a Legacy Wifi adapter - still no luck.
* Had 'Tunngle VPN' installed, other threads advised to remove any VPN's and re-install. I did this but no change.

MY SOLUTION:
Just as I was signing up to this website to get some answers I thought back to what I had last installed on my PC. I had updated my Bit Defender Internet Security 2015 software just before my previous shutdown. I though maybe its firewall is up to something weird... Sure enough I turn it off and BOOM! Internet!

* The culprit stopping my internet but causing all adapters to think I was still connected was an annoying wee setting under the advanced settings of my Bit Defender Firewall called 'Block Internet Connection Sharing', I switched this setting off and all is peaceful in the world again. (See attached screenshot - top setting)





It maybe worth checking your firewall even if it isn't Bit Defender for a similar setting. I hope this information saves someone much frustration and wasted time.

 

I HAD internet connectivity after upgrading my Surface Pro, for at least 12 hours. I do NOT have Cisco VPN. I uninstalled some WebEx junk that I didn't realize I had on the computer, and then I also noticed under 'Notifications' that I had some kind of Cisco PowerShow power management something or other running, so I disabled it. Restarting and I now have internet access again. I suspect that the Cisco power management stuff turned off my wifi when the computer went to sleep last night, and never reenabled it, even after reboot. Not sure exactly what fixed the problem, but I once again have internet. (edit - without reverting to 8.1 or reinstalling anything, so try this first).

 

I am uninstalling Cisco VPN. I am going to run CCleaner then try Windows 10 again. Let us hope that internet finally comes along with it.

 

Yup, that did it. The internet on Windows 10 is up and running. *Smile

 

Hi Everyone,

I had this issue as well, and I wanted to post my experience solving it in the hopes that it helps another. I upgraded Windows 8.1 to Windows 10 on a Surface Pro 2. Once upgraded, everything worked perfect for about a day. Then suddenly (perhaps after a reboot, not sure) I lost my internet connectivity and my bluetooth, and likely ethernet as well (I didn't test).

Unlike some of the other posters, my Marvell AVASTAR 350N was being detected in the Device Manager, but had some kind of a problem with its driver / installation. I did a driver rollback to an older version. I was running version 14.69.24054.176 [5.23.2014]. I was able to select an older version 14.69.24054.168 [1.23.2014] and everything started working again.

I suppose it is possible I could loose connectivity again tomorrow, but so far so good. Bluetooth also fixed with that driver change. I do NOT have any cisco VPN software installed on the machine either as many others online have mentioned.

For an experienced computer user, this is a pretty easy fix. But I wasted 39 minutes or so online looking at solutions before I just troubleshot the thing myself. Hope this is useful to someone and saves some aggrevation.

Best,

Kevin