---
title: "Pop-Up: “Failed to create OPI Comm”"
description: "![](https://roundupsaloon.com/wp-content/uploads/micros-failed-to-create-OPI-comm-2-1024x609.jpg) When running a credit card through the pin pad, if a \"Failed to create OPI Comm\" pop-up appears, try each of these steps in this order: - Reset the pin pad device: - Press the yellow \""
url: "https://roundupsaloon.com/docs/failed-to-create-opi-comm-pop-up/"
updated: "2025-01-16"
category: Micros
---

# Pop-Up: “Failed to create OPI Comm”

![](https://roundupsaloon.com/wp-content/uploads/micros-failed-to-create-OPI-comm-2-1024x609.jpg)

When running a credit card through the pin pad, if a "Failed to create OPI Comm" pop-up appears, try each of these steps in this order:

- Reset the pin pad device:
  - Press the yellow "<" and the "#*" buttons at the same time until the pin pad reboots.
  - When the pin pad again shows the "Shift 4" logo, retry the credit card authorization.

![](https://roundupsaloon.com/wp-content/uploads/micros-pinpad-reset-buttons-1002x1024.jpg)

- Restart the Micros 3700 application:
  - Have a Manager swipe their card on the side of the Micros terminal.
  - Click the "MINIMIZE POS OPS" button.
  - Press and hold the taskbar icon for the Micros POS application until a menu pops up and select "Close window".

![](https://roundupsaloon.com/wp-content/uploads/micros-taskbar-icon-for-OPS-application-1024x582.jpg)

- You'll get a confirmation ("Do you really want to shut down 3700 POS OPS?"). Click the "Yes" button.
- Click the Windows Start button.
- If there's a "Start RES" button on the right side of the Start menu, click that button to restart the Micros POS application.
- If there's NO "Start RES" button, click the "MICROS Applications" menu, scroll down to "Start RES" and click that to restart the Micros POS application.
- When the Micros POS application is back up and running, retry the credit card operation.

- Restart the Micros terminal
  - Have a Manager swipe their card on the side of the Micros terminal.Click the "MINIMIZE POS OPS" button.
  - Click the "MINIMIZE POS OPS" button.
  - Click the Windows Start button.
  - Click on the Power button

![](https://roundupsaloon.com/wp-content/uploads/micros-windows-power-button-1024x576.jpg)

- Click the "Restart" menu option
- When the Micros POS terminal is back up and running, retry the credit card operation.