2

Just got a new PSU because my old one was on the way out. Started up my computer and everything works fine except for a yellow triangle with a warning tick on the Network and Sharing center icon on my task bar.

The network adapter looks like this:

enter image description here

The device manager looks like this:

enter image description here

Ethernet adapter IP/DNS settings:

enter image description here

Some how I am connected to the internet though, any help would be appreciated.

I have already deleted and reinstalled drivers for the device, rebooted my PC, rebooted my router, reset my modem, turned my PC on and off and taken my Ethernet cable out and put it back in.

Kinnectus
  • 10,906
  • 3
  • 32
  • 41
user611221
  • 21

3 Answers3

1

A yellow triangle means that your drivers and hardware are working properly.

The problem is with the IP, your PC is not able to obtain an IP address to assess internet.

You can check it by opening cmd and type ipconfig command and hit enter.

Check for ip v4 address as well as v6. If they exists then it's ok. Otherwise type ipconfig /renew or /release to obtain a new one.

If it doesn't work turn off router and connect the Ethernet cable in the same port as it as before the maintenance.

Leave it for few minutes and turn it on.

Rohit kumar
  • 372
0

Some options you should check:

  1. Verify there is a DHCP server on the same physical network as your computer (usually, the router on home networks)
  2. Check if this DHCP server is active and has spare IPs to distribute (should be in the DHCP settings of your router, can't help you there)
  3. If the DHCP is enabled, open a command prompt and run the commands @Rohitkr suggested.
  4. If DHCP is not enabled, or not working, check "Use the following IP address" in your IPv4 settings and manually enter the IP you want to give to your computer, as well as its subnet mask (usually 255.255.255.0) and it default gateway (the router's IP in this subnet).
  5. Do point 4 if there is no DHCP at all on this network.
Nathan.Eilisha Shiraini
  • 2,674
0

The reason for the issue may be broken registry permissions.

To fix:

  1. Run regedit.exe.
  2. To HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList's ACL, add NT Service\netprofm and grant it all rights except Write DAC and Write Owner. Check the "Replace all child object permission entries with inheritable permission entries from this object" checkbox.
  3. To HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\Nla's ACL, add NT Service\NlaSvc and grant it the same rights as in step 1.

Alternatively, you may use SetACL:

setacl.exe -ot reg -on "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList" -actn ace -ace "n:NT Service\netprofm;p:query_val,set_val,create_subkey,enum_subkeys,notify,create_link,delete,read_access" -actn rstchldrn -rst dacl
setacl.exe -ot reg -on "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\Nla" -actn ace -ace "n:NT Service\NlaSvc;p:query_val,set_val,create_subkey,enum_subkeys,notify,create_link,delete,read_access"

Then log off and log on again.

Tested on Windows 7.

Ben N
  • 42,308
GCRaistlin
  • 121