# Homey Energy Dongle ⚡️ - Megathread **URL:** \ **Category:** Energy\ **Created:** [March 31, 2025, 9:09pm UTC](https://community.homey.app/t/homey-energy-dongle-megathread/133816 "2025-03-31T21:09:41Z")\ **Posts on this page:** 1\ **Showing post:** 237
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [April 19, 2025, 11:47am UTC](https://community.homey.app/t/homey-energy-dongle-megathread/133816/237 "2025-04-19T11:47:37Z")
YW! > [@Christian\_DS](#): > > If I remember correctly, he said that the P1 on the Landis&Gyr E450 isn’t a P1 port, but rather an M-Bus port. > The HomeWizard P1 can handle it, though I see! That changes things significantly; Now I don’t know if Athom would feel like / be able to pull that trick as well. > [@Christian\_DS](#): > > The only annoying thing is that the HomeWizard P1 frequently fails with Homey Very odd, I use it for over 4 years now, besides the occasional hickup (~2 times a year), which is device related (red ledring and such). I use a Pro2019 (wifi) btw. Maybe with your HW P1 the adjustments / customisation for M-Bus are flaky? It’s important to reserve IP addresses for both HW P1 as Homey, while Homey is very poor in finding devices which got their IP changed. And all hints in [this post](https://community.homey.app/t/app-pro-homewizard/19267) are important. --- _[View the full topic](https://community.homey.app/t/homey-energy-dongle-megathread/133816)._