---
title: "TP-Link Configuration Guide"
slug: "tp-link-configuration-guide"
updated: 2026-03-03T16:56:22Z
published: 2026-03-03T16:56:22Z
canonical: "docs.ucstack.io/tp-link-configuration-guide"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ucstack.io/llms.txt
> Use this file to discover all available pages before exploring further.

# TP-Link Configuration Guide

## **✅ Compatible TP-Link Models**

| **Series** | **Popular Models** | **Notes** |
| --- | --- | --- |
| **Archer Series** | Archer VR900, VR2600, VR2100, VR400, VR600, AX series | SIP ALG under Advanced > NAT Forwarding > ALG |
| **Deco Mesh** | All Deco models (M4, M5, X20, X60, X68, etc.) | Configure via Deco App: Advanced > Acceleration/ASIP LAG |
| **VR Series** | VR900, VR600, VR400, VR200, VR2100, VX230v | Built-in VoIP features, SIP account configuration available |
| **TD Series** | TD-W8961ND, TD-8817, TD-W8951ND, TD-W9960v | xDSL modem routers, SIP ALG in Advanced > NAT Forwarding |

> [!NOTE]
> **Note:** TP-Link routers are among the most popular in Canada, widely available at Best Buy, Amazon.ca, Canada Computers, and Memory Express . The Archer series is the best-selling consumer router line in Canada.

---

## **Introduction**

This guide provides our recommended configuration for TP-Link routers (Archer, Deco, VR, and TD series) to ensure optimal VoIP performance.

---

## **Provider-Specific Requirements**

> [!WARNING]
> **Important:** You need to allow traffic from the following IP range through your firewall.

| **Requirement** | **Specification** |
| --- | --- |
| **IP Range to Whitelist** | `64.26.133.64/27` |
| **Ports to Open** | UDP`5060-5061`(SIP) and UDP `10000-20000`(RTP) |
| **SIP ALG** | **MUST BE DISABLED** |

---

## **Accessing Your TP-Link Router**

| **Method** | **Instructions** |
| --- | --- |
| **Web Browser (Routers)** | Open browser to `http://tplinkwifi.net` or `http://tplinkmodem.net` or `192.168.0.1` . Log in with your admin credentials (first-time setup requires creating a password). |
| **Deco App (Mesh)** | Open **TP-Link Deco app** on your mobile device. Log in with your TP-Link account and ensure you're connected to the correct Deco site. |

---

## **1. Disable SIP ALG (Critical)**

> [!CAUTION]
> **Critical:** SIP ALG is enabled by default on TP-Link routers and MUST be disabled for proper VoIP operation.

### **For Archer / VR / TD Series (Web Interface)**

| **Step** | **Action** | **Details** |
| --- | --- | --- |
| **1** | Log in to web interface | `http://tplinkwifi.net` or `192.168.0.1` |
| **2** | Navigate to Advanced | Click **Advanced** tab at the top |
| **3** | Go to NAT Forwarding > ALG | **Advanced > NAT Forwarding > ALG** |
| **4** | Disable SIP ALG | **Uncheck** the box next to SIP |
| **5** | Save | Click **Save** to apply changes |

### **For Deco Mesh Systems (App)**

| **Step** | **Action** | **Details** |
| --- | --- | --- |
| **1** | Open Deco app | Launch **TP-Link Deco app** and log in |
| **2** | Go to Advanced settings | Navigate to **More > Advanced** or **Advanced settings** for your site |
| **3** | Disable Acceleration | Find **Acceleration**, **ASIP LAG**, or **QoS/Optimization** and turn it OFF |
| **4** | Save | Tap **Save** or **Apply** to confirm |

---

## **2. Configure DNS (Recommended)**

Polycom and other VoIP devices are sensitive to DNS issues. Manually setting reliable DNS servers can prevent registration failures.

| **Navigation** | **Advanced > Network > LAN Settings** |
| --- | --- |
| Locate **Primary DNS Server** and **Secondary DNS Server** fields |
| Enter recommended DNS: |
| **Primary:** `8.8.8.8` (Google) **Secondary:** `8.8.4.4` |

---

## **3. Configure QoS (Quality of Service)**

QoS ensures voice traffic is prioritized over other data, improving call quality.

| **Navigation** | **Advanced > QoS** |
| --- | --- |
| Check **Enable** to turn on QoS |
| Enter your **Upload Bandwidth** (use ~95% of your ISP-provided upload speed) |
| Check **VoIP QoS** to prioritize voice traffic |
| Click **Save** to apply |

---

## **4. Port Forwarding (For VoIP Devices)**

Port forwarding allows external traffic to reach your VoIP device or ATA.

### **For Archer / VR / TD Series**

| **Navigation** | **Advanced > NAT Forwarding > Virtual Servers** or **Port Forwarding** |
| --- | --- |
| Click **Add** to create a new rule |
| Enter your VoIP device's **Internal IP Address** (use DHCP reservation) |
| Enter the required ports: |
| - **UDP 5060-5061** (SIP) - **UDP 10000-20000** (RTP) - **UDP 500 & 4500** (for Wi-Fi calling) |

### **For Deco Mesh Systems**

| **Navigation** | Open Deco app > **More > Advanced > Port Forwarding** |
| --- | --- |
| Tap **Add** to create a new rule |
| Enter **Service Name** (e.g., "VoIP"), **Internal IP**, and required ports |
| Tap **Save** and verify the rule appears in the list |

---

## **5. Address Reservation (Static IP)**

Ensure your VoIP device always gets the same IP address for port forwarding to work reliably.

| **Device Type** | **Router (Archer/VR/TD)** | **Deco Mesh** |
| --- | --- | --- |
| **Navigation** | **Advanced > Network > DHCP Server > Address Reservation** | Deco app > **More > Advanced > DHCP > Address Reservation** |

---

## **6. For VR Series with Built-in VoIP**

Some TP-Link VR series routers (VR900, VR600, VX230v) have built-in VoIP ports. Use these steps to configure your SIP account.

| **Step** | **Action** | **Details** |
| --- | --- | --- |
| **1** | Go to Voice Settings | **Advanced > Telephony > Voice** or **SIP Account** |
| **2** | Add SIP Account | Click **Add** and enter your provider's SIP settings |
| **3** | Configure SIP Settings | Set **Registrar Address**, **Authentication ID**, and **SIP Password** |
| **4** | Advanced Settings | Uncheck **"Register via Outbound Proxy"** if not required |
| **5** | Set WAN Interface | Go to **Voice > Advanced > SIP Advanced** and set **Bound Interface** to **Any_WAN** |

## **7. Wi-Fi Calling Configuration**

If Wi-Fi calling isn't working on your TP-Link router, additional ports need to be opened.

| **Required Ports** | **UDP 500** (IKE2) |
| --- | --- |
| **UDP 4500** (IPsec NAT Traversal) |
| Use **Port Forwarding** or **Port Triggering** to open these ports for your smartphone's IP |

## **8. Provider IP Whitelist (Port Forwarding)**

Create a port forwarding rule to allow traffic from our servers to reach your VoIP device.

| **Field** | **Value** |
| --- | --- |
| **Service Name** | VoIP Provider |
| **External Port** | `5060-5061` and `10000-20000` (UDP) |
| **Internal IP** | Your VoIP device's IP address (use DHCP reservation) |
| **Protocol** | UDP |

> [!NOTE]
> **Note:** The `/27` notation includes **32 IP addresses** ranging from `64.26.133.64` to `64.26.133.95`.

---

## **9. Verification & Testing**

### **NAT Test**

After completing the above configurations, test your network to verify SIP compatibility and performance

| **Test** | **Details** |
| --- | --- |
| **Network Assessment Tool** | Run the NAT test provided by your VoIP provider |
| **Test Call** | Make test calls to verify two-way audio and feature functionality |
| **SIP Registration** | Confirm your VoIP device shows as "Registered" or "Online" |

---

## **🚨 Troubleshooting**

| **Issue** | **Likely Cause** | **Solution** |
| --- | --- | --- |
| **One-way audio** | SIP ALG still enabled | Double-check SIP ALG is disabled in Advanced > NAT Forwarding > ALG |
| **Wi-Fi calling not working** | Ports 500/4500 not forwarded | Forward UDP 500 and 4500 to your smartphone's IP |
| **Registration fails** | DNS issues | Set DNS to 8.8.8.8 / 8.8.4.4 |
| **Port forwarding not working** | Device IP changed | Use Address Reservation for static IP |
| **Poor call quality** | No QoS configured | Enable QoS and prioritize VoIP traffic |
| **Outbound Proxy issues** | Incorrect SIP settings | Uncheck "Register via Outbound Proxy" if not required |

---

## **✅ Configuration Checklist**

| **#** | **Task** |
| --- | --- |
| 1 | **SIP ALG disabled** in Advanced > NAT Forwarding > ALG |
| 2 | **DNS servers configured** (8.8.8.8 / 8.8.4.4) |
| 3 | **QoS enabled** with VoIP priority |
| 4 | **Port forwarding** configured for SIP (5060-5061) and RTP (10000-20000) |
| 5 | **Address reservation** set for VoIP device |
| 6 | For VR series: **SIP account configured** with correct provider settings |
| 7 | **Wi-Fi calling ports** forwarded if needed (UDP 500 & 4500) |
| 8 | **Test call successful** with two-way audio |

**🛠️ Official TP-Link Tutorials**

For visual guidance on configuring your TP-Link router, visit the official TP-Link support page:

🔗 [**TP-Link Configuration Guide**](https://static.tp-link.com/res/down/doc/Protocol_VLAN_Configuration_Guide.pdf?configurationId=2979)

---