P9 powerline backhaul no longer working with 1.1.5 firmware
I have the Deco P9 (US, version 1) set up as follows:
- Main unit in the basement
- Second unit on the ground floor, connected by LAN wire to the main unit
- Third unit on the second floor, with no LAN connection available
- Router mode
For quite some time, everything was working as intended, with the third unit showing a poweline backhaul connection to the main unit with no issues. Two months ago, I upgraded to firmware 1.1.5. Since then, unit 3 has briefly showed a powerline connection after some system reboots but quickly switches to Wifi mode (with the app showing a medium quality connection) and stays there. Internet use through unit 3 now appears to be more sluggish than before. I have done no other change to my setup other than the firmware upgrade.
Should'nt the powerline connection normally provide better performance than a medium strength wifi link? That was my impression and reason for buying the P9 in the first place. If so, why is the powerline no longer used? Is this a known issue with 1.1.5? Can I rollback to 1.1.3?