This procedure is for adjusting the MTU (Maximum Transmission Unit) on a user’s PC when connected to the HACC AlwaysOn VPN, to ensure better connectivity, especially with T-Mobile’s service.
Prerequisites:
- Remote administrative access to the user's PC.
- Access to Windows Shell or PowerShell Command line.
- HACC AlwaysOn VPN installed and connected.
Procedure:
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Launch Command Prompt (CMD):
- Right-click on CMD and select Run as Administrator.
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Check the current MTU setting for HACC AlwaysOn VPN:
- Type the following command and press Enter:
- The MTU for the HACC AlwaysOn VPN should be displayed. If not, launch the VPN and try again.
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Change the MTU size:
- Type the following command to set the MTU size to 1350:
- This adjusts the MTU size, as T-Mobile’s service is optimized for this setting when using HACC’s VPN.
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Verify the change:
- Type the following command again to verify the MTU value:
- The output should show the MTU value set to 1350.
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Reboot the PC:
- Restart the user’s PC to apply the changes. After reboot, you can check again using the netsh command to confirm the MTU setting persists.
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Exit Remote Session:
- If the connection seems stable, you can exit the remote session.