> 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/p400-two-piece-sa/errors/terminal-is-ready-waiting-for-ecr-connection.md).
# Terminal Is Ready, Waiting for ECR Connection
What to do when a P400 Two-Piece shows Terminal is ready, waiting for ECR connection — reconnect the operator and customer units.
{% hint style="info" %}
**Use this page when** your P400 Two-Piece shows **"Terminal is ready, waiting for ECR connection"** and the operator unit and customer unit aren't communicating with each other.
{% endhint %}
Keywords
Also called: waiting for ECR connection, terminal is ready, ECR not connected, operator unit not connecting, customer unit not connecting, two-piece not connecting. Search terms: ECR, waiting for ECR, IP address, ECR port, 9600, operator unit, customer unit, communication device.
## Symptoms
You may see one or more of the following:
* The terminal displays **"Terminal is ready, waiting for ECR connection"**.
* The operator unit and customer unit don't respond to each other.
* Transactions can't be started from the operator unit.
**Most likely cause:** the customer unit doesn't have the operator unit's correct IP address or communication settings, or the units aren't connected to the same network.
## Before you start
Your P400 Two-Piece has two units:
* **Operator unit** — the unit at the till.
* **Customer unit** — the unit the customer uses to pay.
To connect them, you'll find the operator unit's IP address, set its communication settings, then enter that IP address on the customer unit.
* Make sure the terminal is connected to your network by **network cable** or **Wi-Fi**.
## Resolution
{% stepper %}
{% step %}
### Check the operator unit is connected to the network
1. On the operator unit, press **#** to open the menu.
2. Select **Administration > Settings > Communications**.
3. Check whether **LAN** or **Wi-Fi** shows as **UP**.
* **If one shows UP:** note which one it is and continue to the next step.
* **If neither shows UP:** the terminal isn't connected to your network. Connect it first using [How to Connect the Cables](/support-nordics/p400-two-piece-sa/how-tos/how-to-connect-the-cables.md) (network cable) or [How to Set Up Wi-Fi](/support-nordics/p400-two-piece-sa/how-tos/how-to-set-up-wi-fi.md) (wireless), then start again.
{% endstep %}
{% step %}
### Print the operator unit's IP address
1. Select **More > Status > IP addresses**.
2. Select the connection you're using (**LAN** or **Wi-Fi**).
3. Press **Print** in the bottom-right corner. Keep this receipt — you'll need the IP address in Step 4.
4. Press the **red button** until you're out of the menu.
{% endstep %}
{% step %}
### Set the operator unit's communication settings
1. Press **#** to open the menu.
2. Select **Administration > Settings > ECR > Set ECR Address**.
3. Check the address is **0.0.0.0**, then press the **green button**.
4. Select **Set ECR Port**. Check it shows **9600**. If it doesn't, enter **9600**, then press the **green button**.
5. Select **Choose comm. Device**:
* **Ethernet#0** if the terminal uses a network cable.
* **Wi-Fi** if the terminal uses a wireless connection.
6. Press the **red button** until you're out of the menu.
{% endstep %}
{% step %}
### Enter the IP address on the customer unit
1. On the customer unit, press **4** and **6** at the same time, then enter password **1234**.
2. Select **Administration > Settings > ECR > Set ECR Address**.
3. Enter the IP address from the receipt you printed in Step 2 (shown under **IPV4 IP address**).
* Use the number keys for the digits and the **\*** key for each dot.
4. Press the **green button**.
5. Select **ECR Port**. Check it shows **9600**. If it doesn't, enter **9600**, then press the **green button**.
6. Select **Choose comm. Device**:
* **Ethernet#0** if the terminal uses a network cable.
* **Wi-Fi** if the terminal uses a wireless connection.
7. Press the **red button** until you're out of the menu, then try a transaction.
{% hint style="success" %}
**The units are connected when** the screen shows **Verifone** on a white background and the **"Waiting for connection"** message has gone.
{% endhint %}
✅ **Issue fixed — stop here.** ❌ **Still not working — continue to Step 5.**
{% endstep %}
{% step %}
### Check both units are on the same network
1. On each unit, go to **Communications > More > Status > IP addresses**, then select **LAN** (or **Wi-Fi**).
2. Compare the two IP addresses. The **first three numbers** should be the same:
* ✅ Same network: 192.168.1.43 and 192.168.1.36
* ❌ Different networks: 192.168.1.42 and 192.168.2.46
3. If they're different, make sure both units are connected to the same router or Wi-Fi network, then repeat Steps 2 to 4.
✅ **Issue fixed — stop here.** ❌ **Still not working — contact Support below.**
{% endstep %}
{% endstepper %}
**If a transaction now works.** The units are connected. No further action needed.
**If the units still won't connect.** Our team can run further checks on the terminal's network and security settings — contact Support below.
## Still not working?
{% hint style="info" %}
**Still need help? Contact Verifone Support.**
If the steps above haven't resolved the issue, contact Verifone Support. Tell us the troubleshooting steps you've already tried — it helps us get you to the right support faster.
{% endhint %}
---
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