---
title: Fixing Slow Connection Issues with S1F2 Terminals
description: Adyen has identified that some S1F2 terminals may experience delays when receiving payment requests from ePOS systems. If you’re encountering this issue, follow these steps for a temporary fix:
---

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February 21, 2025

# Fixing Slow Connection Issues with S1F2 Terminals

## Adyen has identified that some S1F2 terminals may experience delays when receiving payment requests from ePOS systems. If you’re encountering this issue, follow these steps for a temporary fix:

**1. Connect the Terminal to Wi-Fi**

Ensure the terminal is connected to a stable Wi-Fi network. If Wi-Fi is unavailable at your location, use a mobile hotspot.

 

**2. Remove the SIM Card (If Needed)**

If payment requests are still not reaching the terminal, remove the SIM card. The SIM card, located under the battery, may override the Wi-Fi connection if the signal is weak, which can cause delays.

 

**3. Restart and Test**

•Reinsert the battery.

•Power on the terminal.

•Process a test payment to confirm the issue is resolved.

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