Reprogram a Zyxel VMG8825-T50
Follow these steps to reconnect your router and restore your internet connection.
1. Connect to the Router
You can connect using a cable (recommended) or Wi-Fi.
Option A: Wired (recommended)
- Plug an Ethernet cable into one of the yellow LAN ports on the router.
- Plug the other end into your computer.
Option B: Wi-Fi (if no cable available)
- Check the sticker on the router.
- The default Wi-Fi name starts with Zyxel_.
- Note the default wireless key (8-digit number).
- Open Wi-Fi settings on your device.
- Select Zyxel_xxxxx (numbers/letters vary).
- Enter the wireless key from the router sticker.
You will be connected to the router but not to the internet yet.
2. Log In to the Router
- Open a web browser.
- In the address bar, type:
- 192.168.1.1
- 192.168.1.1
- Press ENTER.
- Enter:
- Username: admin
- Password: admin
- Click LOGIN.
3. Change the Router Login Password
You will be prompted to change the password.
- Enter a new password using:
- first initial + surname + 1 (lowercase)
- Example: Joe Bloggs = jbloggs1
- Confirm the password and log in.
4. Enable Remote Management (Vfast Support Access)
- Click the MENU icon (top right).
- Click MAINTENANCE.
- Select REMOTE MANAGEMENT.
- Select the TRUST DOMAIN tab.
- Click ADD TRUST DOMAIN.
- Enter:
- 80.88.192.113/32
- 80.88.192.113/32
- Click APPLY.
- Select the MGMT SERVICES tab.
- In the Trust Domain column, enable all rows.
- Click APPLY.
5. Set Up the Internet Connection
Your setup depends on your service type:
- Ultrafast (Full Fibre) and Fast (WiMAX) use ETHWAN
- Superfast (FTTC) uses VDSL
ETHWAN Setup (Full Fibre and WiMAX)
- Click the MENU icon.
- Click NETWORK SETTINGS.
- Select BROADBAND.
- Find the ETHWAN interface.
- Click the MODIFY (pen icon).
- Under WAN Configuration Edit > General:
- Mode: Routing
- Encapsulation: PPPoE
- Under PPP Information:
- PPP User Name: your account number
- PPP Password: your PPPoE password
- Click SAVE.
VDSL Setup (FTTC)
- Click the MENU icon.
- Click NETWORK SETTINGS.
- Select BROADBAND.
- Find the VDSL interface.
- Click the MODIFY (pen icon).
- Under WAN Configuration Edit > General:
- Mode: Routing
- Encapsulation: PPPoE
- Mode: Routing
- Under PPP Information:
- PPP User Name: your account number
- PPP Password: your account number
- PPP User Name: your account number
- Under VLAN:
- Enable VLAN
- 802.1p: 0
- 802.1q: 101
- Enable VLAN
- Click APPLY.
6. Set Up Your Wi-Fi Networks
- Click the MENU icon.
- Click NETWORK SETTINGS.
- Select WIRELESS.
- Under Wireless, untick Keep the same settings for 2.4G and 5G.
2.4 GHz Wi-Fi
- Set Band to 2.4GHz.
- In Wireless Network Name, enter:
- VFAST followed by the account holder’s initials
Example: Joe Bloggs = VFAST JB
- VFAST followed by the account holder’s initials
- Click APPLY.
5 GHz Wi-Fi
- Set Band to 5GHz.
- In Wireless Network Name, enter:
- VFAST followed by the account holder’s initials and 5GHz
Example: VFAST JB 5GHz
- VFAST followed by the account holder’s initials and 5GHz
- Click APPLY.
If you are connected over Wi-Fi, reconnect to the new Wi-Fi name.
7. Test Your Connection
- Open a new browser tab.
- Visit vfast.co.uk or another website.
- If the page loads, your connection is working.
Need Help?
If the router does not connect after following these steps, contact the Service Desk:
support@vfast.co.uk
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