# Ping 1D intermittent disconnect .... HELP! **URL:** \ **Category:** Ping Sonar Devices\ **Created:** [March 23, 2021, 4:10pm UTC](https://discuss.bluerobotics.com/t/ping-1d-intermittent-disconnect-help/9329 "2021-03-23T16:10:15Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![FlyingManta](https://avatars.discourse-cdn.com/v4/letter/f/fbc32d/32.png) [@FlyingManta](https://discuss.bluerobotics.com/u/FlyingManta)\ **Post date:** [March 23, 2021, 4:10pm UTC](https://discuss.bluerobotics.com/t/ping-1d-intermittent-disconnect-help/9329/1 "2021-03-23T16:10:15Z")
My 1D ping sonar connects (UDP), it works for 5 min and loses the connection in an unknown way … I disassembled the electronics, checked all the sockets (on the sonar itself and in the tube) and everything is in perfect condition … I restarted it, it works 5 min and loses the connection again … What is going on ? (On PC Companion Interface I can “see” the UART card but not the Ping)… Thank you ---
**Author:** ![patrickelectric](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/patrickelectric/32/2162_2.png) [@patrickelectric](https://discuss.bluerobotics.com/u/patrickelectric)\ **Post date:** [March 26, 2021, 2:00pm UTC](https://discuss.bluerobotics.com/t/ping-1d-intermittent-disconnect-help/9329/2 "2021-03-26T14:00:37Z")
Hi @FlyingManta, Try to access [the terminal](https://www.ardusub.com/reference/companion/terminal-over-browser.html) and run the `dmesg -w` command, with that, you’ll be able to see if there is an intermittent USB connection. You’ll see something like: - `usb 5-3.3: USB disconnect, device number 9` ---
**Author:** ![FlyingManta](https://avatars.discourse-cdn.com/v4/letter/f/fbc32d/32.png) [@FlyingManta](https://discuss.bluerobotics.com/u/FlyingManta)\ **Post date:** [March 27, 2021, 9:03am UTC](https://discuss.bluerobotics.com/t/ping-1d-intermittent-disconnect-help/9329/3 "2021-03-27T09:03:36Z")
Hi Patrick, Thank you very much for your answer, before having the time to test your solution I just found the failure which had lasted for weeks … just before the connector that plugs into the UART card, there are 4 small connectors, one of them (the ground) barely held and caused intermittent disconnections … Monday: welding !! 😁😁 ---
**Author:** ![patrickelectric](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/patrickelectric/32/2162_2.png) [@patrickelectric](https://discuss.bluerobotics.com/u/patrickelectric)\ **Post date:** [April 3, 2021, 11:00am UTC](https://discuss.bluerobotics.com/t/ping-1d-intermittent-disconnect-help/9329/4 "2021-04-03T11:00:22Z")
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