Hi,
[EDIT1] : Sorry for the typo in the Title , it should be "Powering OAK4-D using USB Power Adapter and using Ethernet Switch for Data only"
I using OAK-4 device using the following setup:
1. Using a USB Power Adapter with the following specification:
Output voltage: 5.1V
Output current: 5.0A
Output power: 25.5W
2. Ethernet Switch (1Gbps) Data : Using a static IP on the OAK-4D during setup. Please refer the attached image for the options I am choosing for setup.

I ran the following CLI
oakctl setup --password 'XXX' --static-ip 10.42.0.101,255.255.255.0,10.42.0.1 --app-config '{}' --agent-config "sc=QCDLBQ" --dont-check-internet --dns 8.8.8.8,10.42.0.1 --time-zone XXXX --time "@1769600340"
Agent ip changed from "10.42.0.101:9998" to "10.42.0.97:9998"Login token expired, re-authenticating...Setup completed successfully.
After this i configure the device to use static IP using the following config
~ # cat /etc/NetworkManager/system-connections/static-eth0.nmconnection
[connection]
id=static-eth0
uuid=918fd1b4-2af2-4973-a01f-e547987556f7
type=ethernet
autoconnect-priority=1
interface-name=eth0
timestamp=1769600340
[ethernet]
[ipv4]
address1=10.42.0.101/24
dns=8.8.8.8;10.42.0.1;
gateway=10.42.0.1
ignore-auto-dns=true
link-local=4
method=manual
The device gets detected successfully using oakctl
+---+-------------+-------------+-------------+-------------+---------+-------+
| # | Serial | Device | Connection | OS | Agent | Setup |
| | Number | | | | Version | |
+=============================================================================+
| 1 | XXXXXXXXXX | Luxonis, | 10.42.0.101 | Luxonis OS | 0.17.0 | OK |
| | | Inc. OAK4-D | | RVC4 1.23.0 | | |
| | | R9 | | | | |
+---+-------------+-------------+-------------+-------------+---------+-------+
Now, when i open oak-viewer , I am unable to see any device and when I manually enter the IP and try to connect I just get this warning pop-up with no device getting connected.

Is this happening because I have powered the device using USB or this is normal ?
Is powering the device with USB power adapter is a valid option?
I essentially wants to run OAK-4 in standalone mode and run my own application on it.
I even tried using the oak-examples/apps/ros/ros-driver-basic application (humble branch) to check if running an DepthAI application on the camera will resolve it but even after setting the parameters.yaml as below , the node is unable to connect to the camera with the erro
ros__parameters:
camera:
i_ip: "10.42.0.101"
driver:
i_enable_ir: true
pipeline_gen:
i_pipeline_type: RGBD
-------------- Error in the CLI ----------
No devices detected by autodiscovery, trying to connect to camera via IP: 10.42.0.101