Optimizing Powerline for VDSL – Setup via devolo Cockpit

In a few cases, using Powerline adapters in conjunction with a VDSL connection of profiles 17a and 35b can lead to an unstable internet connection due to interference between the telephone and power lines. The following steps can help you improve the stability of your internet connection.

Instructions for Magic Adapter

A firmware update eliminates interference.


In close collaboration with leading international telecommunications providers, devolo has significantly improved the interaction between VDSL and Magic-Powerline. devolo VDSL Performer is the feature that optimally coordinates all available frequency bands.


devolo VDSL Performer eliminates the need for manual adjustment of devolo Magic adapters to different VDSL profiles and automatically ensures that users receive the best possible performance in their home network.

What do users of Magic Adapters need to do?

With the automatic update function of the devolo Magic Adapters, the software update occurs without your intervention. In order for the router and PLC adapter to communicate, your router must support the standard protocol TR-064 and the VDSL Performer.

The following routers support the VDSL Performer:

  • AVM Fritzbox (from FritzOS 7.2): 7430, 7490, 7530, 7590
  • Telekom Speedport Smart 3
  • Telekom Speedport Smart 4 Plus


Do you have a different router? Then use the manual settings options of the devolo devices.


Instructions for dLAN Adapter

Connection interruptions often occur due to "cable clutter," as even isolated cables emit signals. When telephone cables and power cables are tangled, Powerline and VDSL signals can interfere with each other, leading to disruptions.


  • Please untangle the cables and then check if the problem has been resolved.

Identify VDSL Profile

If the telephone and power cables are separated outside the wall but the connection is still unstable, the cables may be located close together within the walls. For the next steps, you should definitely identify the profile used for your VDSL connection.


  • You can find out the VDSL profile either through your router's configuration interface or directly from your provider. VDSL connections with vectoring or super-vectoring are usually affected by interference. These connections use the profiles 17a and 35b . Contact your provider if you have any uncertainties.

devolo adapter for use with VDSL or (Super) Vectoring connections

Please ensure that you have completed the initial steps and checked the results before proceeding.


For all dLAN 500, dLAN 550 and outdoor adapters , no manual adjustment to the VDSL profile is required, as they operate exclusively in SISO mode.

Setup on Desktop PC

1. Download the devolo Cockpit

Download the devolo Cockpit.


Download

2. Start WiFi Cockpit

Start the devolo WiFi Cockpit. Your active devolo adapters will be detected immediately.

3. Update Adapters

Keep the firmware of your devolo adapters up to date. Check the devolo Cockpit to see if new updates are available. To do this, click on "Updates" at the bottom of the devolo Cockpit. If updates are available, click "Yes" in the "Firmware Updates Available" dialog. The firmware will then be updated on all devolo adapters.

VDSL Profile Settings in the Dashboard

Preliminary: Vectoring or Super-Vectoring

To proceed, you need to determine which VDSL profile is active on your connection, as mentioned at the beginning. You can usually find this information in the web interface of your router or through your provider.

Are you using Vectoring with up to 100 Mbit/s downstream?
Then, the profile 17a is most likely active. Check if the VDSL connection remains stable after updating the adapter firmware. Your profile will then be preset to "17a."

Are you using Super-Vectoring with up to 250 Mbit/s downstream?
Then your connection is most likely based on profile 35b.

Below you will learn how to adjust the profiles accordingly.

1. Select Adapter

  • In the devolo Cockpit, select any dLAN adapter. You will see a gray tab on the right side of the adapter symbol.
  • Click on this tab, and a menu with a "gear/arrow" symbol will open.
  • There, select "Settings for the PLC device" and switch to the "VDSL" tab.

2. Select Profile

For this step, you need the VDSL profile you requested from your provider.

  • "VDSL Profile 17a": The operating mode MIMO and the VDSL Profile 17a are usually set by default. You do not need to make any optimizations.
  • "VDSL Profile 35b": Change the selection using the arrow on the right side. Click on “VDSL Profile 35b” and confirm with “OK”.

Done! Your powerline adapter is now optimized for VDSL.

Please ensure to configure each adapter individually for use with (Super-)Vectoring connections.

Troubleshooting

DSL connection still unstable

Despite the previous steps, are you still experiencing connection issues?

  • Select any dLAN adapter in the devolo Cockpit. You will see a gray tab on the right side of the adapter icon.
  • Clicking on this tab will open a menu with a "gear/arrow" symbol.
  • Go to the option "Settings for the PLC device." Here, select the "VDSL" tab again and click on the "SISO Mode" option.
  • Confirm with "OK" and you're done.

Do you need assistance?

If you are unsure or continue to experience connection issues, our experts are of course happy to assist you with advice and support.


Contact us

Would you like to learn more about topics such as WiFi range, eliminating dead zones, and router and product compatibility?


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