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frenck merged 4 commits into from
May 1, 2020
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mDNS requires HA to be on same network as devices #13245

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mDNS requires HA to be on same network as devices
emontnemery May 1, 2020
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Update discovery.markdown
emontnemery May 1, 2020
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emontnemery May 1, 2020
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emontnemery May 1, 2020
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6 changes: 3 additions & 3 deletions source/_integrations/discovery.markdown
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Expand Up @@ -98,17 +98,17 @@ Valid values for enable are:

## Troubleshooting

### UPnP
### mDNS and UPnP

Home Assistant must be on the same network as the devices for UPnP discovery to work.
If running Home Assistant in a [Docker container](/docs/installation/docker/) use switch `--net=host` to put it on the host's network.
When running Home Assistant Core in a [Docker container](/docs/installation/docker/) command line option `--net=host` or the compose file equivalent `network_mode: host` must be used to put it on the host's network, otherwise mDNS and UPnP will not work.

### Windows

#### 64-bit Python
There is currently a <a href='https://bitbucket.org/al45tair/netifaces/issues/17/dll-fails-to-load-windows-81-64bit'>known issue</a> with running this integration on a 64-bit version of Python and Windows.

### could not install dependency netdisco
### Could not install dependency netdisco

If you see `Not initializing discovery because could not install dependency netdisco==0.6.1` in the logs, you will need to install the `python3-dev` or `python3-devel` package on your system manually (eg. `sudo apt-get install python3-dev` or `sudo dnf -y install python3-devel`). On the next restart of Home Assistant, the discovery should work. If you still get an error, check if you have a compiler (`gcc`) available on your system.

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