Internet connection availability and access in Windows is indicated via an icon residing on the taskbar. If you see an exclamation mark on Network icon it may mean that your Windows 10/8/7 PC has Limited Network Connectivity. There can, however, be other reasons for this issue. To troubleshoot and resolve this issue, you may try some of the troubleshooting steps listed in this pot, and see if any help.
Limited Network Connectivity
A Limited Network Connectivity message basically means that you have a weak connection or you have used a wrong passcode. Specifically, this is what it means:
Your computer detects that a network is present and operating. That means that it detects that the network cable is plugged in, or that it was able to connect to a wireless access point. Your computer’s request for an IP address went unanswered.
Many a times, the problem appears because of wrong icon mapping. So the first thing you should do if you see a Limited Network Connectivity message is to ensure that all your cables are connected properly and the reboot your router and restart your computer. Turn off your Wi-Fi interface and turn it back on again. Restarting the computer helps reset the internal modem. This will help get rid of the problem in most cases.
In case this does not help or if the issue occurs frequently, see if any of this helps you:
1] Delete the Network profile and re-create it again. To delete it, run command prompt as administrator, type the following and hit Enter:
netsh wlan delete profile name=type-wireless-profile-name
2] Reset WinSock. Open an elevated CMD, type the following and hit Enter:
netsh winsock reset catalog
Then turn off the modem and after a minute turn it on again.
3] IPConfig is a tool built into Windows, that displays all current TCP/IP network configuration values and refreshes Dynamic Host Configuration Protocol DHCP and Domain Name System DNS settings. If you have a bad IP address, then renewing your IP address this way may help solve your internet problems.
Type cmd in start search and press Ctrl-Shift-Enter to run CMD as admin.
Type the following to let go of the current IP address and hit Enter:
Next type the following to obtain a new IP address and hit Enter:
4] Run the built-in Internet Connections or Network Adapter Troubleshooter. To access it, navigate to Control Panel\All Control Panel Items\Troubleshooting\Network and Internet.
5] Reinstall or Upgrade the Network Interface Card or NIC driver to the latest version
5] Reset TCP/IP. If you cannot connect to the Internet, your Internet Protocol or TCP/IP may have been corrupted, and you may have to reset TCP/IP. TCP/IP is one of the core components required by your Windows computer to connect successfully to the Internet. To do this, open an elevated command prompt, type the following and hit Enter:
netsh int ip reset resettcpip.txt
8) Disable IPv6 and see if it helps.
9) The Network Reset feature in Windows 10 will help you reinstall Network adapters and reset Networking Components to original settings.
This post offers more ideas on how to resolve Network & Internet connection problems.
Exclamation mark on Network icon
If connectivity is limited and if only the local network is available, you will see an exclamation mark over the Network icon or the Wi-Fi icon. If you are able to connect and do not have Limited Internet Connectivity or if you do not want to be notified of it, you can make Windows not show this exclamation mark.
To disable this yellow triangle exclamation mark overlay icon, launch ‘Run’ dialog box by pressing Win+R in combination. In the empty field there, type regedit and hit Enter to open the Registry Editor. When prompted by UAC hit ‘Yes’.
Navigate to the following key:
When in the Network Connections key, right-click in an empty space and choose New > DWORD Value.
Name it as NC_DoNotShowLocalOnlyIcon.
Now, double-click on the same key to force it to show its Edit window and underneath the Value data, assign number 1.
Close the Registry Editor and restart your computer.
If your version of Windows comes with the Group Policy Editor, Run gpedit.msc and navigate to the following setting:
Computer Configuration > Policies > Administrative Templates > Network > Network Connections
Here enable the Do not show the “local access only” network icon setting and restart your computer. This will disable the No Internet Access notification.
The yellow triangle exclamation mark overlay icon will now not show on the Network icon, even when you have Limited Network Connectivity.
See this post if you cannot connect to Internet after upgrading to Windows 10 and this one if you receive a Windows has detected an IP address conflict message.