# BlueROV2 connection failure after boot-up **URL:** \ **Category:** BlueROV2\ **Created:** [September 22, 2026, 9:52am UTC](https://discuss.bluerobotics.com/t/bluerov2-connection-failure-after-boot-up/23628 "2026-09-22T09:52:58Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![gusnobima](https://avatars.discourse-cdn.com/v4/letter/g/49beb7/32.png) [@gusnobima](https://discuss.bluerobotics.com/u/gusnobima)\ **Post date:** [September 22, 2026, 9:52am UTC](https://discuss.bluerobotics.com/t/bluerov2-connection-failure-after-boot-up/23628/1 "2026-09-22T09:52:59Z")
Hi, we have a repeating problem with BlueROV2 connection. It works good when it is powered up the first time in a day, but subsequent start-ups rarely work. We get all the beeps, but LEDs on Ports 1 and 5 on added ethernet switch do not turn on after the first boot-up. We have a stable green light on 5V\_OK LED indicator. We are using Pi 4. The reason we added the ethernet switch was to integrate a Nucleus DVL, and it worked great for a while. I found this post: [Ethernet switch no activity - #12 by EliotBR](https://discuss.bluerobotics.com/t/ethernet-switch-no-activity/14846/12) and we checked our Ethernet switch, it is the same batch as those affected. We have another switch, but is from the same batch as well. ---
**Author:** ![gtorres](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/gtorres/32/12793_2.png) [@gtorres](https://discuss.bluerobotics.com/u/gtorres)\ **Post date:** [September 22, 2026, 2:54pm UTC](https://discuss.bluerobotics.com/t/bluerov2-connection-failure-after-boot-up/23628/2 "2026-09-22T14:54:17Z")
Hi @gusnobima , Please [submit a support ticket through the website’s help center](https://bluerobotics.com/help-center/) with your order number and share clear, close-up pictures of the front and back of the board so we can further assist.