Failed to initialize client

[Nour-BCH]

I'm trying to connect Ouster OS0-32-U Lidar with ROS Noetic and ubuntu 20.04, using the v2.5.3 FW with link-local only Ethernal interface

When trying to launch driver.launch I get the error:
[ouster::sensor] {error] init_client(): A timeout occurred while waiting for the sensor to initialize.
[1729259432.079667441]: Failed to initialize client

Unable to display sensor data in rviz, and no messages sent on the sensor topics

[Samahu]

Hi @Nour-BCH, I can't reproduce the error with a REV-6 (128) sensor running FW 2.5.3. It is not clear to me how are you launching the sensor (Whether you are using the sensor hostname or the IP). Based on the error output this suggest that the sensor URL is probably un-accessible from the machine you are spawning the driver on. Consider the following:

• Make sure you are able to ping the sensor from the machine (whether you are using the IP address or the sensor hostname)
• From the same machine check if the command curl -i -X GET http://<use-sensor-address>/api/v1/sensor/metadata returns a valid json output. If it doesn't then this is likely a problem in your setup.
• If you are using the sensor hostname try out the sensor ip address. Sometime it could be a DNS problem where the system can't resolve the hostname of the sensor

Hope this helps!