Thursday, March 14, 2019

Sonicwall Global VPN Client & Windows 10 wifi bug

Sonicwall Global VPN Client & Windows 10 bug


With the GVC running, connected or not, the wifi speed is reduced, often to less than 1MB making it almost unusable.

Solution / Workaround is to disable Receive Segment Coalescing (RSC) on the wifi adapter.

Automated fix from Microsoft available here, https://aka.ms/diag_cssemerg11005

Manual fix

Open an Administrative Command Prompt
Get the network adapter name,  powershell Get-NetAdapter
Get the network adapter's RSC setting,  powershell Get-NetAdapterRsc
Disable RSC for the adapter, powershell Disable-NetAdapterRsc -Name ADAPTER-NAME
Verify RSC is disabled, powershell Get-NetAdapterRsc

Monday, December 3, 2018

Export Drivers from Windows

From a installed and running Windows computer you can extract all the drivers to be used on another computer or saved for re-installation.  Use Powershell and this command,

 Export-WindowsDriver -Destination "C:\Drivers\$((Get-WmiObject -Class win32_computersystem).Model)" -Online

Monday, October 29, 2018

Skype 8 auto update workaround

%appdata%\Roaming\Microsoft\Skype for Desktop

Delete or rename the Skype-Setup.exe file and create a folder with that name

Tuesday, September 18, 2018

Windows 10 Apps

List of provisioned apps
Get-AppXProvisionedPackage -Online | Select PackageName


Remove an app
Remove-AppXProvisionedPackage -Online -PackageName <PackageName>


Remove all provisioned apps
Get-AppXProvisionedPackage -Online | Remove-AppxProvisionedPackage -Online

Wednesday, August 15, 2018

Migrate DHCP from 2008R2 to 2016

- On new 2016 server add the DHCP role, but do not configure it yet
- Export the DHCP configuration from the 2008R2 server.  On the 2008R2 server open Powershell (run as administrator) and enter,
netsh DHCP server export C:\dhcp-export.txt
- copy the exported text file to the new 2016 server
- Import the DHCP configuration into the 2016 server.  On 2016 server open Powershell (run as administrator) and enter,
netsh DHCP server import C:\dhcp-export.txt
- Start Server Manager, Tools menu, select DHCP.  Right click your server and Authorize
- Check the new DHCP, it should have the same configuration as the old one


The DHCP on the old 2008R2 will be deactivated automatically using this process.  You can safely remove the DHCP role from the old server at this point.







Thursday, July 26, 2018

Rename Domain Controller 2012/2016

How to change domain controller name.

oldname.domain.local change to newname.domain.local


1.  open command prompt
2.  add an alternative computer name
netdom computername oldname.domain.local /add:newname.domain.local
3.  make new name the primary name
netdom computername oldname.domain.local /makeprimary:newname.domain.local
4.  reboot
5.  best to check if the new name was successful, check your system properties
6.  remove old name
netdom computername newname.domain.local /remove:oldname.domain.local