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Reolink sub-headings in troubleshooting (#35864)

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Co-authored-by: Franck Nijhof <git@frenck.dev>
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@ -394,14 +394,19 @@ Set up the Reolink integration in Home Assistant using the credentials you set i
## Troubleshooting ## Troubleshooting
### Can’t setup the integration
- Older firmware versions do not expose the necessary information the integration needs to function. Ensure the camera is updated to the [latest firmware](https://reolink.com/download-center/) prior to setting up the integration. Note that Reolink auto update and check for update functions in the app/windows/web client often do not show the latest available firmware version. Therefore check the version in the [Reolink download center](https://reolink.com/download-center/) online. - Older firmware versions do not expose the necessary information the integration needs to function. Ensure the camera is updated to the [latest firmware](https://reolink.com/download-center/) prior to setting up the integration. Note that Reolink auto update and check for update functions in the app/windows/web client often do not show the latest available firmware version. Therefore check the version in the [Reolink download center](https://reolink.com/download-center/) online.
- Test if you can access the camera by its IP address in your browser `https://<your-camera-ip>`. If you cannot, in the [Reolink mobile app, Windows, or Mac client](https://reolink.com/software-and-manual/) ensure at least one of the HTTP/HTTPS ports are enabled under **Settings** > **top camera model box** > **Network Information** > **Advanced** (mobile) or **Settings** > **Network** > **Advanced** > **Port Settings** (PC). See [additional instructions](https://support.reolink.com/hc/en-us/articles/900000621783-How-to-Set-up-Reolink-Ports-Settings/) on the Reolink site. - Test if you can access the camera by its IP address in your browser `https://<your-camera-ip>`. If you cannot, in the [Reolink mobile app, Windows, or Mac client](https://reolink.com/software-and-manual/) ensure at least one of the HTTP/HTTPS ports are enabled under **Settings** > **top camera model box** > **Network Information** > **Advanced** (mobile) or **Settings** > **Network** > **Advanced** > **Port Settings** (PC). See [additional instructions](https://support.reolink.com/hc/en-us/articles/900000621783-How-to-Set-up-Reolink-Ports-Settings/) on the Reolink site.
- On some camera models, the RTMP port needs to be enabled in order for the HTTP(S) port to function properly. Make sure this port is also enabled if you get a `Cannot connect to host` error while one of the HTTP/HTTPS ports is already enabled. - On some camera models, the RTMP port needs to be enabled in order for the HTTP(S) port to function properly. Make sure this port is also enabled if you get a `Cannot connect to host` error while one of the HTTP/HTTPS ports is already enabled.
- If the integration and the browser can't connect to the camera even after you enable the HTTP/HTTPS ports, try to create a new user on the camera; that fixes the problem in some cases.
### Entities intermittently become unavailable
- Setting a static IP address for Reolink cameras/NVRs in your router is advisable to prevent (temporal) connectivity issues when the IP address changes. - Setting a static IP address for Reolink cameras/NVRs in your router is advisable to prevent (temporal) connectivity issues when the IP address changes.
- Do not set a static IP in the Reolink device itself, but leave the **Connection Type** on **DHCP** under **Settings** > **Network** > **Network Information** > **Set Up**. If you set it to **static** on the Reolink device itself, this is known to cause incorrect DHCP requests on the network. The incorrect DHCP request causes Home Assistant to use the wrong IP address for the camera, resulting in connection issues. The issue originates from the Reolink firmware, which keeps sending DCHP requests even when you set a static IP address in the Reolink device. - Do not set a static IP in the Reolink device itself, but leave the **Connection Type** on **DHCP** under **Settings** > **Network** > **Network Information** > **Set Up**. If you set it to **static** on the Reolink device itself, this is known to cause incorrect DHCP requests on the network. The incorrect DHCP request causes Home Assistant to use the wrong IP address for the camera, resulting in connection issues. The issue originates from the Reolink firmware, which keeps sending DCHP requests even when you set a static IP address in the Reolink device.
- Reolink cameras can support a limited amount of simultaneous connections. Therefore using third-party software like Frigate, Blue Iris, or Scrypted, or using the ONVIF integration at the same time can cause the camera to drop connections. This results in short unavailabilities of the Reolink entities in Home Assistant. Especially when the connections are coming from the same device (IP) where Home Assistant is running, the Reolink cameras can get confused, dropping one connection in favor of the other originating from the same host IP. If you experience disconnections/unavailabilities of the entities, please first temporarily shut down the other connections (like Frigate) to diagnose if that is the problem. If that is indeed the problem, you could try moving the third-party software to a different host (IP address) since that is known to solve the problem most of the time. You could also try switching the protocol to FLV on Home Assistant and/or the third-party software, as that is known to be less resource-intensive on the camera. - Reolink cameras can support a limited amount of simultaneous connections. Therefore using third-party software like Frigate, Blue Iris, or Scrypted, or using the ONVIF integration at the same time can cause the camera to drop connections. This results in short unavailabilities of the Reolink entities in Home Assistant. Especially when the connections are coming from the same device (IP) where Home Assistant is running, the Reolink cameras can get confused, dropping one connection in favor of the other originating from the same host IP. If you experience disconnections/unavailabilities of the entities, please first temporarily shut down the other connections (like Frigate) to diagnose if that is the problem. If that is indeed the problem, you could try moving the third-party software to a different host (IP address) since that is known to solve the problem most of the time. You could also try switching the protocol to FLV on Home Assistant and/or the third-party software, as that is known to be less resource-intensive on the camera.
- If the Reolink entities go to unavailable for short periods, the camera may be overloaded with requests resulting in short connection drops. To resolve this, first, check if the integration is using `ONVIF push` instead of `ONVIF long polling` (resource intensive) or `Fast polling` (very resource intensive), see the [Reducing latency of motion events](#reducing-latency-of-motion-events) section. Moreover, try switching to the <abbr title="flash video">FLV</abbr> streaming protocol which is the least resource-intensive for the camera, see the [options](#options) section. - If the Reolink entities go to unavailable for short periods, the camera may be overloaded with requests resulting in short connection drops. To resolve this, first, check if the integration is using `ONVIF push` instead of `ONVIF long polling` (resource intensive) or `Fast polling` (very resource intensive), see the [Reducing latency of motion events](#reducing-latency-of-motion-events) section. Moreover, try switching to the <abbr title="flash video">FLV</abbr> streaming protocol which is the least resource-intensive for the camera, see the [options](#options) section.
- If the integration and the browser can't connect to the camera even after you enable the HTTP/HTTPS ports, try to create a new user on the camera; that fixes the problem in some cases.
### Reducing latency of motion events ### Reducing latency of motion events