Disable IPv6 on Tianyi Gateway

Disable IPv6 on Tianyi Gateway | Generated by AI

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Question: How do I disable IPv6 on the XGPON Tianyi (天翼) Gateway (Dual-Band WiFi 6)?

Answer:

How to Disable IPv6 on the XGPON 天翼 Gateway (Dual-Band WiFi 6)

⚠️ Important Note: IPv6 settings on Tianyi gateways are hidden from regular user accounts. You must use the Super Administrator (telecomadmin) account to access and change IP mode settings. The standard account on the back label only provides basic/limited access.

Step 1 — Log In as Super Administrator

Connect your computer to the gateway via LAN cable or WiFi.
Open a browser and go to:
- http://192.168.1.1 — most common
- Or http://192.168.1.1:8080 — used by some models (e.g., TEWA series)
Log in with the Super Admin credentials:
- Username: telecomadmin
- Password: Usually nE7jA%5m (default for many models — if this doesn’t work, contact China Telecom / 10000 to get your device’s super admin password)

If you haven’t logged in with the super administrator account, many settings will be hidden from the interface.

Step 2 — Navigate to Network Settings

After logging in, click 网络 (Network) in the top menu.
Click 网络设置 (Network Settings).
Under 连接名称 (Connection Name), select your internet connection — it is typically named something like:
- 3_INTERNET_R_VID_XX or x_INTERNET_x_VID_xx

Step 3 — Change IP Mode to IPv4 Only

In the connection settings, look for the IP模式 (IP Mode) dropdown. It is likely currently set to IPv4&IPv6. Change it to:

IPv4 (IPv4 Only)

This disables IPv6 on the WAN connection.

To fully disable ISP-delivered IPv6, the key setting is to choose IPv4 Only in the connection’s IP mode (rather than IPv4&IPv6).

Step 4 — Save and Apply

Click 保存 (Save) or 保存/应用 (Save/Apply).
Wait approximately 10–15 seconds for the change to take effect.
Reboot the gateway if necessary to confirm the setting is applied.

Step 5 — Verify IPv6 is Disabled

On your PC, open Command Prompt and type:

ipconfig

If IPv6 is successfully disabled, you should no longer see a 240e:... style IPv6 address on your network adapter — only the standard IPv4 address should appear.

⚠️ Caveats

Some gateway firmware versions lock IPv6 settings and do not allow users to disable it, even with the super admin account. In that case, you need to call China Telecom (10000) and request they disable IPv6 on your line from the back end.
The exact menu layout may vary slightly depending on your specific XGPON gateway hardware model (e.g., HG6143D, HG5143F, TEWA-208G, etc.).
If you have a downstream router connected to the gateway, you should also disable IPv6 on the router’s WAN/LAN settings separately to fully prevent IPv6 from being distributed to your local devices.

References:

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