Devolo Magic 2 wifi

Stable powerline connection on Devolo Magic 2 wifi mesh

Devolo Magic 2 wifi is a series of products made to create a mesh wifi network in your home with multiple wifi accesspoints connected to the router over the powerline network. It can sometimes be difficult to obtain a reliable, stable connection of the powerline as noise in the powerline can interfere.

This is how I make it as stable as possible.

  • Do not connect the powerline adapter via an extension cord. It should be connected directly to the outlet.
  • Try to find outlets as close to the fuse box as possible. Especially for the unit connected to the router, because this unit will need to communicate well with all other units on the network.
  • If possible, connect the units to outlets that belongs to the same phase. Even though connection over different phases should be possible, it gives lower throughput and more unreliable connection.
  • If possible, use grounded outlets only. This will make it possible for the device to use MIMO technology instead of instead of SISO. MIMO gives higher throughput and is more reliable. Screenshots: SISO mode (left) compared to MIMO mode (right).
    SISO mode MIMO mode
  • In the powerline configuration, deselecting Automatic compatibility mode (recommended) * and choosing VDSL 17a (default) seems to be most reliable for me. (In automatic mode the unit sometimes gets very poor connection and needs to be rebooted in my case.)
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