BlueROV2 Connection Failure

[Athira]

I am currently setting up a BlueROV2 system and am experiencing a persistent communication issue between the topside unit and the ROV. I would greatly appreciate your assistance in diagnosing and resolving this problem.

System Configuration

I am using the following hardware:

• BlueROV2 system
• Power Supply Unit: OTPS1KW-ASM-TOPSIDE-R2
• ROV Power Supply Bottle: OTPS1KW-ASM-ROV-R1
• Blue Robotics yellow tether cable of 300m long
• Laptop connected to the topside power supply unit using the USB-B port

Connection Setup

The system is connected as follows:

• The tether cable is securely connected between the ROV and the topside unit
• The topside power supply (OTPS1KW-ASM-TOPSIDE-R2) is powered ON
• The ROV power supply bottle (OTPS1KW-ASM-ROV-R1) is also powered ON
• Upon powering the ROV, I hear an initial beep followed by a second beep after a short delay

Observed Behavior

On my Windows 11 system:

• Ethernet connection is detected at 100 Mbps

• Network status shows as “Unidentified Network”

• IPv4 connectivity shows “No Internet Access”

In Ethernet status:

• Packets Sent: increasing

• Packets Received: 0

• I am unable to access BlueOS via browser (192.168.2.2)

• QGroundControl consistently shows “Disconnected”

I have already attempted the following:

• Restarted the entire system (ROV, topside unit, and laptop) multiple times

• Verified and reconfigured static IP settings (192.168.2.1 / 255.255.255.0)

• Reconnected all cables multiple times ensuring firm connections

• Checked for any visible damage or looseness in connectors

• Confirmed that the system powers on correctly each time

  

Current Condition

• Physical link appears established (100 Mbps shown)
• However, there is no incoming data from the ROV (0 packets received)

[tony-white]

Hi @Athira -

Sorry for the issue. Are you sure your tether isn’t actually 250m b length? A 300m otps tether is not available from Blue Robotics…

It sounds like you’re fathom x tether interface isn’t connecting. Verify that the link light is coming on in the ROV main electronics enclosure on the port side, two green lights should be present near the front of the enclosure.

If you continue to have issues, please reach out to the help center with your order number, report a problem with a product.

[Athira]

Hi Tony,

After powering up one blue and green LED are ON. After the second beep sound, the one more blue LED is ON, and started blinking.

[tony-white]

Hi @Athira -

That’s good news - the vehicle brain is starting up ok. However, that is the starboard side of the ROV - I asked about the lights on the port side, on the board that looks like the image below. If the link light is off, you’ll never be able to communicate!

[Athira]

Hi Tony,

The both LEDs are ON in the port side also.

[tony-white]

Hi @Athira -

I didn’t expect that but it likely means the issue isn’t with the ROV, but your computer! I’d recommend trying another one to be sure- Windows can have issues with IP configuration of your used the newer network configuration tool…it can be quite frustrating to clear out this configuration and properly setup the network adapter that appears when you connect the USB cable to your computer.

Do you see a corresponding link light on the OTPS topside? It may only be visible if your remove the user serviceable cover.