# Ardusub web interface refuses to connect in BlueROV2

**URL:** <https://discuss.bluerobotics.com/t/ardusub-web-interface-refuses-to-connect-in-bluerov2/12501>\
**Category:** Blue Robotics Products\
**Created:** [July 10, 2022, 6:00pm UTC](https://discuss.bluerobotics.com/t/ardusub-web-interface-refuses-to-connect-in-bluerov2/12501 "2022-07-10T18:00:10Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![EliotBR](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/eliotbr/32/6937_2.png) [@EliotBR](https://discuss.bluerobotics.com/u/EliotBR)\
**Post date:** [July 12, 2022, 1:24am UTC](https://discuss.bluerobotics.com/t/ardusub-web-interface-refuses-to-connect-in-bluerov2/12501/2 "2022-07-12T01:24:07Z")

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Hi @StSS, welcome to the forum 🙂

If you’re able to successfully ping then most likely the communication hardware connections and the main network setup are correct.

- I assume your onboard computer (Raspberry Pi) is still running the [Companion software](https://www.ardusub.com/introduction/required-software.html) (rather than [BlueOS](https://discuss.bluerobotics.com/t/blueos-official-release/12024))?
  - Do you know which version you’re using?

- How are you trying to connect to the web interface?
  - Does [http://192.168.2.2:2770](http://192.168.2.2:2770) work?
  - Can you try clearing your browser’s cache, or try in an incognito/private window?

If that doesn’t work you can try doing `ssh pi@192.168.2.2` (password `companion`) to see if you’re able to connect and log in over ssh (to potentially do some further troubleshooting), but it may be simpler to [flash on a new image](https://www.ardusub.com/quick-start/installing-companion.html), or preferably [install BlueOS](https://docs.bluerobotics.com/ardusub-zola/software/onboard/BlueOS-1.0/installation/) 🙂

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