> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/support-nordics/v400m/errors/wrong-credentials.md).

# Wrong Credentials

What to do when your V400M shows Wrong Credentials while connecting to Wi-Fi — correct the saved Wi-Fi password.

{% hint style="info" %}
**Use this page when** your terminal shows **Wrong Credentials** while connecting to Wi-Fi, or won't connect after you've entered the Wi-Fi password.
{% endhint %}

<details>

<summary>Keywords</summary>

Also called: wrong credentials, wrong Wi-Fi password, incorrect password, Wi-Fi won't connect, authentication failed. Search terms: wrong credentials, credentials, Wi-Fi, wifi, password, PSK, pre-shared key, can't connect.

</details>

## Symptoms

You may see one or more of the following:

* The terminal shows **Wrong Credentials** when connecting to Wi-Fi.
* The terminal doesn't show **"Network started"** after you've entered the Wi-Fi password.

**Why this happens:** the Wi-Fi password saved on the terminal is incorrect — for example, it was mistyped, or your Wi-Fi password has changed.

## Before you start

{% hint style="warning" %}
Have your **correct Wi-Fi password** ready. Wi-Fi passwords are case sensitive, so check capital and small letters carefully.
{% endhint %}

## Resolution

{% stepper %}
{% step %}

### Enter the correct Wi-Fi password

Update the Wi-Fi password saved on the terminal — see [How to Change the Wi-Fi Password](/support-nordics/v400m/how-tos/how-to-change-the-wi-fi-password.md).
{% endstep %}

{% step %}

### Check the connection

The screen should show **"Network started"** with a **green tick**.

✅ **Network started — stop here.** ❌ **Still not connecting — continue to Step 3.**
{% endstep %}

{% step %}

### Check your Wi-Fi network is working

* Try connecting another device, such as your phone, to the same Wi-Fi.
* If you don't have another internet connection, you can test the terminal using your mobile phone's **personal hotspot** — see [How to Set Up Wi-Fi](/support-nordics/v400m/how-tos/how-to-set-up-wi-fi.md).

✅ **Connected — stop here.** ❌ **Still not connecting — continue to Step 4.**
{% endstep %}

{% step %}

### Contact Verifone Support

If the terminal still won't connect, <mark style="color:red;">contact Verifone Support</mark>. We may need to check your terminal's Wi-Fi security settings.
{% endstep %}
{% endstepper %}

**If the terminal shows "Network started".** It's connected and ready to use.

**If it still won't connect.** Contact Support below.

## Still not working?

{% hint style="info" %}
**Still need help? Contact Verifone Support.**

If the steps above haven't resolved the issue, <mark style="color:red;">contact Verifone Support</mark>. Tell us the troubleshooting steps you've already tried — it helps us get you to the right support faster.
{% endhint %}


---

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