diff --git a/source/_components/xiaomi_aqara.markdown b/source/_components/xiaomi_aqara.markdown
index 8685d30a2be..5f5cbd77fd8 100644
--- a/source/_components/xiaomi_aqara.markdown
+++ b/source/_components/xiaomi_aqara.markdown
@@ -273,5 +273,7 @@ That means that Home Assistant is not getting any response from your Xiaomi gate
 - Try to disable and then enable LAN access.
 - Hard reset the gateway: Press the button of the gateway 30 seconds and start again from scratch.
 - If you are using Home Assistant in [Docker](/docs/installation/docker/), make sure to use `--net=host`.
-- If you receive an `{"error":"Invalid key"}` in your log while trying to control the gateway light, you should generate the key again using an Android Phone or alternatively an emulator such as [bluestacks](https://www.bluestacks.com). In some instances there is an issue with keys being generated using the iOS application.
+- If you receive an `{"error":"Invalid key"}` in your log while trying to control the gateway light
+  - You should generate the key again using an Android Phone or alternatively an emulator such as [bluestacks](https://www.bluestacks.com). In some instances there is an issue with keys being generated using the iOS application.
+  - You need to make sure to have multicast support on your network. If you are running Home Assistant in a virtual machine (like Proxmox), try `echo 0 >/sys/class/net/vmbr0/bridge/multicast_snooping` on the host and restart the service or reboot the host.
 - If the required library "PyXiaomiGateway" cannot be installed you will need to install some missing system dependencies `python3-dev`, `libssl-dev`, `libffi-dev` manually (e.g., `$ sudo apt-get install python3-dev libssl-dev libffi-dev`).