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Add troubleshooting regarding UPD multicast (vlans) (#16175)

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Co-authored-by: Franck Nijhof <git@frenck.dev>
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starkillerOG 2021-01-25 16:06:43 +01:00 committed by GitHub
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source/_integrations/motion_blinds.markdown
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@ -84,3 +84,17 @@ The `cover.set_cover_position` will set the scaled position relative to the spac
| `entity_id` | yes | Name of the motion blind cover entity to control. For example `cover.TopDownBottomUp-Bottom-0001` |
| `absolute_position` | no | Absolute position to move to. For example 70 |
| `width` | yes | Optionally specify the width that is covered, only for TDBU Combined entities. For example 30 |
## Troubleshooting
Home Assistant uses the following UDP multicast addresses/ports for communication with the gateway:
- Motion hub receive UDP multicast `238.0.0.18:32100`
- Motion hub sending UDP multicast `238.0.0.18:32101`
This communication needs to be allowed on your local network. If the blinds are unavailable and you see error messages like:
`Timeout of 5.0 sec occurred on 5 attempts while waiting on multicast push from update request, communication between gateway and blind might be bad.`
Please make sure the motion gateway and the device running Home Assistant are on the same VLAN and multicasting is enabled/allowed by your router.
If using separate VLANs, make sure the 238.0.0.18:32100 and 238.0.0.18:32101 ports are open for communication between those VLANs (not tested or confirmed to work).