Lost contact with ROV

Blue Robotics Vehicles BlueROV2 Heavy
1

Hi

I have an BlueROV2 Heavy with Raspberry Pi 4 and Navigator ++, from 2019-2024

I have not used the ROV for about 11 months.

A couple a days ago I upgrade the BlueOS to Stable v1.4.2…

Everything was ok and I setup the vehicle….

After a while I lost communication with the ROV.

Power and Link LED on Fathom-X Tether interface (FXTI) is ON when I connect the USB cable to Computer.

I have checked that the tether is OK.

No lights on ethernet port of Rasphberry Pi 4.

If I use a ethernet cable direct from computer to Rasphberry Pi 4 the lights on ethernet port of Rasphberry Pi 4 i lights yellow, but still NO contact with ROV.

I get contact with ROV (BlueOS) thru wi-fi.

I think I have allowed the software to communicate thrue Firewall.

Here is my Ipconfig and ping results with use of Fathom-X Tether interface (FXTI)

{EEBA5712-EBF6-4D19-8EFA-270026B2483F}
{EEBA5712-EBF6-4D19-8EFA-270026B2483F}1346×1353 37.4 KB

What to do, what is wrong ??

Best regards

Erland Hansen

2

Hi @erhan -

Sorry for the issue! If you don’t see ethernet lights with the Fathom-X connected to the pi, you could have an issue with that short ethernet cable, or the Fathom-X in the ROV itself - despite the green link light. When you connect directly, it is strange that you still can’t reach the interface! Is the Blue light flashing on the Navigator, indicating that the system started up ok? Do you hear a beep from the thrusters a minute or two after connecting power, indicating the same?

Have you switched computers, had a leak, or changed your hardware or software in any other way?

If you’re able to reach the BlueOS interface via WiFi, you could use the tether diagnostic extension to understand what’s happening with the connection - please share screenshots of that interface once you’ve installed it!

3

Hi Tony

Thanks a lot for reply :slightly_smiling_face:

I found the fault, I think the cable for the Power to the onboard Ethernet Switch is broken.

I connect the Ethernet cable directly from Fathom-X Tether interface to the Raspberry Pi 4.

(Bypassing the Ethernet Switch onboard ROV)

Tomorrow I will fix a new cable to Power the Ethernet Switch.

By the way…I replaced the Raspberry Pi 4 8GB with an Raspberry Pi 4 2GB, to test if a bad Raspberry Pi 4 was the reason….

Which of these do you recommend ?

Best Regards

Erland

4

Hi @erhan -

Glad you found the problem!

The amount of RAM shouldn’t make too much of a difference to BlueOS, but if you’re using a lot of extensions and other software add-ons, the more the better!

5

Hi again Tony.

Thanks for advice about Raspberry Pi, I have installed the 8GB unit back in the ROV.

“Unfortunately” the power cable to Ethernet Switch was ok.

So the Ethernet Switch have to be replaced.

Thanks anywhy for the help.

Best Regards

Erland

6

Hi @erhan -

Can you describe the behavior of the lights on the bad Ethernet Switch? It may be affected by a known issue, please report the issue via the help center, report a problem with a product. It may be possible to fix, or you may be due a replacement.

7

Hi Tony

No lights at all on the Ethernet Switch with all Ethernet cables connected.

The Blue light flashing on the Navigator, and I hear a beep from the thrusters a minute after connecting power.

I do a Tether Diagnostics thru Wi-fi in the BlueOS and no traffic at all in both curves.

(Yesterday, I do the same Tether Diagnostics without the Ethernet Switch, and there was a lot of traffic and 150Mbps.)

Earlier today, I report the problem with the product via the help center, awaiting answer.

Erland