# Lost control during dive **URL:** \ **Category:** BlueROV2\ **Tags:** ardusub\ **Created:** [May 20, 2025, 6:04pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411 "2025-05-20T18:04:16Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 20, 2025, 6:04pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/1 "2025-05-20T18:04:16Z")
hello we have a bluerov with altimeter, external thermometers (one blue robotics and one PT1000 Atlas scientific) we use cockpit on windows11 computer, xbox controller. After few minutes in the water at 20 meters wa loose the control. The buttons and joysticks don’t make the good actions. We have to reboot blueos to resolve. (reboot cockpit and the computer don’t work) What could be the problem ? thanks a lot ---
**Author:** ![tony-white](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/tony-white/32/18385_2.png) [@tony-white](https://discuss.bluerobotics.com/u/tony-white)\ **Post date:** [May 20, 2025, 8:23pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/2 "2025-05-20T20:23:58Z")
Hi @deny - Sorry for the issue! To help, we’re going to need some more information. What version of BlueOS and Cockpit are you using? Can you share an [autopilot log](https://blueos.cloud/docs/latest/usage/advanced/#log-browser) from the mission where things went wrong? Can you also download the BlueOS system logs (from the gear in the lower left of BlueOS) and share those as well? Both will let us review what may be going wrong. Thanks! ---
**Author:** ![schleitaucher](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/schleitaucher/32/15288_2.png) [@schleitaucher](https://discuss.bluerobotics.com/u/schleitaucher)\ **Post date:** [May 21, 2025, 11:21am UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/3 "2025-05-21T11:21:58Z")
This is a typical issue I run into several times wirh cockpit. Heartbeat and manual Control lost after a few minutes of operation in water. Everythings updated, I will post the versions shortly. Remarkable is the video does not interrupt. The stream is without any problems only controls get lost. If I switch to QGC I can continue the dive without rebooting the vehicle. Cheers Chris ---
**Author:** ![rafael.lehmkuhl](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rafael.lehmkuhl/32/6630_2.png) [@rafael.lehmkuhl](https://discuss.bluerobotics.com/u/rafael.lehmkuhl)\ **Post date:** [May 21, 2025, 12:06pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/5 "2025-05-21T12:06:19Z")
@deny @schleitaucher can you open the “MAVLink Endpoints” menu in BlueOS and check which MAVLink Router is selected? ---
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 21, 2025, 12:55pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/6 "2025-05-21T12:55:24Z")
hello blueOs 1.4.0 ardupilot 4.5.0 cockpit 1.15.1 how to send you the files ? ---
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 21, 2025, 1:08pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/7 "2025-05-21T13:08:11Z")
here are the files [https://wetransfer.com/downloads/448c9b6587dc1c107b3137c8d28d414020250521130648/8997cead83df510e410ea15a0a002f7320250521130709/8d2dc4?t\_exp=1748092008&t\_lsid=4918892c-ba1d-4089-9f41-b9346f8ad0fc&t\_network=email&t\_rid=ZW1haWx8YWRyb2l0fGQxYTg0MjIxLTY1MTEtNGFmNi1hMDQ3LWMyMzk4MTAxMjI1YQ==&t\_s=download\_link&t\_ts=1747832829](https://wetransfer.com/downloads/448c9b6587dc1c107b3137c8d28d414020250521130648/8997cead83df510e410ea15a0a002f7320250521130709/8d2dc4?t_exp=1748092008&t_lsid=4918892c-ba1d-4089-9f41-b9346f8ad0fc&t_network=email&t_rid=ZW1haWx8YWRyb2l0fGQxYTg0MjIxLTY1MTEtNGFmNi1hMDQ3LWMyMzk4MTAxMjI1YQ%3D%3D&t_s=download_link&t_ts=1747832829&utm_campaign=TRN_TDL_01&utm_source=sendgrid&utm_medium=email&trk=TRN_TDL_01) 2 éléments ---
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 21, 2025, 1:31pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/8 "2025-05-21T13:31:40Z")
hello yes it is ![WhatsApp Image 2025-05-21 à 15.30.25_1f4cde6f](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/d/d3c9f1837f94f6bd26a81001a42605d3a4e27c15.jpeg) ---
**Author:** ![rafael.lehmkuhl](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rafael.lehmkuhl/32/6630_2.png) [@rafael.lehmkuhl](https://discuss.bluerobotics.com/u/rafael.lehmkuhl)\ **Post date:** [May 21, 2025, 1:39pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/9 "2025-05-21T13:39:08Z")
Thanks! Can you change it to MAVLink-Server and see if the problem goes away? MAVLink-Server is Blue Robotic’s router, carefully written to solve the bugs we found with MAVLinkRouter and MAVP2P along the way. ---
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 21, 2025, 2:10pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/10 "2025-05-21T14:10:31Z")
when we change to mavlink-server, we have no connection with the rov. should we change other parameters ? ---
**Author:** ![rafael.lehmkuhl](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rafael.lehmkuhl/32/6630_2.png) [@rafael.lehmkuhl](https://discuss.bluerobotics.com/u/rafael.lehmkuhl)\ **Post date:** [May 21, 2025, 2:19pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/11 "2025-05-21T14:19:21Z")
Did you try restarting BlueOS and the vehicle after changing the router? It is a broad change, so it may need a reboot to work properly. ---
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 21, 2025, 2:24pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/12 "2025-05-21T14:24:45Z")
no better 😟 ---
**Author:** ![rafael.lehmkuhl](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rafael.lehmkuhl/32/6630_2.png) [@rafael.lehmkuhl](https://discuss.bluerobotics.com/u/rafael.lehmkuhl)\ **Post date:** [May 21, 2025, 2:26pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/13 "2025-05-21T14:26:35Z")
On the “Autopilot Firmware” menu of BlueOS, does it says “No board running” or does it show a running board? And how is the heartbeat icon in the top-right corner? ---
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 21, 2025, 2:38pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/14 "2025-05-21T14:38:51Z")
![WhatsApp Image 2025-05-21 à 16.34.20_54fcb553](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/4/40e42d40c83e199829ebd7bdc0e2e1252a1a1473.jpeg) ![WhatsApp Image 2025-05-21 à 16.34.20_2a17de2a](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/f/f1d882458d49efe2d912146a5ee237dc2e050671.jpeg) ---
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 21, 2025, 2:39pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/15 "2025-05-21T14:39:47Z")
![WhatsApp Image 2025-05-21 à 16.38.55_50d08196](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/3/37a0e8866b92d7a72ce16b01ded1f86d50e00780.jpeg) ---
**Author:** ![rafael.lehmkuhl](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rafael.lehmkuhl/32/6630_2.png) [@rafael.lehmkuhl](https://discuss.bluerobotics.com/u/rafael.lehmkuhl)\ **Post date:** [May 21, 2025, 2:43pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/16 "2025-05-21T14:43:12Z")
Thanks for the screenshots. Going back to MAVLinkRouter reestablishes the connection? ---
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 21, 2025, 2:49pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/17 "2025-05-21T14:49:57Z")
yes. it works with mavlinkrouter without reboot. ![WhatsApp Image 2025-05-21 à 16.48.13_42aaddf1](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/f/f44cf0db52aab25e7da24bfdc1f5dc09bb0784fd.jpeg) ---
**Author:** ![rafael.lehmkuhl](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rafael.lehmkuhl/32/6630_2.png) [@rafael.lehmkuhl](https://discuss.bluerobotics.com/u/rafael.lehmkuhl)\ **Post date:** [May 21, 2025, 3:47pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/18 "2025-05-21T15:47:20Z")
@deny I asked for the help of @joaoantoniocardoso, who’s the developer behind mavlink-server, to see if we can find the problem. We haven’t seen this problem before. ---
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 21, 2025, 3:48pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/19 "2025-05-21T15:48:54Z")
ok. i will connect tomorrow. have a good day ---
**Author:** ![joaoantoniocardoso](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/joaoantoniocardoso/32/8377_2.png) [@joaoantoniocardoso](https://discuss.bluerobotics.com/u/joaoantoniocardoso)\ **Post date:** [May 21, 2025, 4:29pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/20 "2025-05-21T16:29:16Z")
> [@deny](#): > > when we change to mavlink-server, we have no connection with the rov. Hi, could you re-download and send us the logs again? The previous logs were before this event. Thanks ---
**Author:** ![deny](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@deny](https://discuss.bluerobotics.com/u/deny)\ **Post date:** [May 21, 2025, 5:11pm UTC](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411/22 "2025-05-21T17:11:01Z")
> **[00435-2025-05-21\_15-33-41.zip](https://wetransfer.com/downloads/e927591e21645b821e1effa0b6548ba920250521171007/5ef57cc241b46bbcc5f5af04bb46c95220250521171023/8e2e9b?t_exp=1748106607&t_lsid=ab0cc6b6-6c12-4b0d-b5d7-ff340b15f1ed&t_network=email&t_rid=ZW1haWx8YWRyb2l0fGQxYTg0MjIxLTY1MTEtNGFmNi1hMDQ3LWMyMzk4MTAxMjI1YQ%3D%3D&t_s=download_link&t_ts=1747847422&utm_campaign=TRN_TDL_01&utm_source=sendgrid&utm_medium=email&trk=TRN_TDL_01)** > > 1 file sent via WeTransfer, the simplest way to send your files around the world [Next page](https://discuss.bluerobotics.com/t/lost-control-during-dive/20411.md?page=2)