Re-installing WAN miniport devices

Just ran across an issue where the miniport devices were accidently removed from a system. Not having these installed caused the system to have network driver installation and connectivity issues.

Here are the steps to re-install WAN miniport devices

Step 1: Uninstall WAN Miniport Devices

1. Open Device Manager (devmgmt.msc) and on the view menu select Show hidden devices

2. Under Network adapters, you will see WAN miniport devices (IP, L2TP, Pppoe, PPTP). If you don’t see these, skip to the Step 2 section

3. Open Registry editor (regedit.exe)

4. Browse to the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318} and Export this registry subkey

5. Click each of the registry subkeys under this key. Look up the data value in DriverDesc. Find the subkey that corresponds to the miniport device for example, WAN Miniport (IP).

6. Right click the subkey (for example 005), and then click delete. Click Yes to confirm deletion

7. Go into Device Manager and right click the miniport device that corresponds to the subkey that was deleted. Select uninstall and confirm uninstallation

8. Repeat this process for all miniport devices that you need to uninstall

Step 2: Reinstall WAN Miniport Devices

9. Find netrasa.inf in c:\windows\inf

10. Make a copy of this file (netrasa.bak)

11. Open netrasa.inf and comment out the following section:

Before

[ControlFlags]
ExcludeFromSelect =\
    SW\{eeab7790-c514-11d1-b42b-00805fc1270e},\
    MS_IrdaMiniport,\
    MS_IrModemMiniport, \
    MS_L2tpMiniport,MS_PptpMiniport,\
    MS_PppoeMiniport, \
    MS_NdisWanBh,\
    MS_NdisWanIp,\
    MS_NdisWanIpv6,\
    MS_NdisWanNbfIn,MS_NdisWanNbfOut

After

[ControlFlags]
;ExcludeFromSelect =\
;    SW\{eeab7790-c514-11d1-b42b-00805fc1270e},\
;    MS_IrdaMiniport,\
;    MS_IrModemMiniport, \
;    MS_L2tpMiniport,MS_PptpMiniport,\
;    MS_PppoeMiniport, \
;    MS_NdisWanBh,\
;    MS_NdisWanIp,\
;    MS_NdisWanIpv6,\
;    MS_NdisWanNbfIn,MS_NdisWanNbfOut

12. Start the Add Hardware Wizard from control panel

13. Select Yes, I have already connected the hardware, then Next

14. Select Add a new hardware device, then Next 

15. Select Install the hardware that I manually select from a list (Advanced), then Next

16. Select Network Adapters, then Next

17. Select Microsoft in the Manufacturer section and then on the Network Adapter, select the desired WAN Miniport device, then Next and Finish the wizard

18. Repeat 13 – 18 for each device you are re-installing

19. After the devices are re-installed, reboot the system

20. Run netsh int ip reset c:\resetlog.txt and reboot the system again (Resetting the TCP/IP stack)

21. Check the network connections in device manager and in Network Connection (ncpa.cpl)

22. Delete c:\windows\inf\netrasa.inf and rename netrasa.bak to netrasa.inf