To log in to a Huawei HG8145V5, connect to the ONT by Ethernet or Wi-Fi, open the management address shown on the device label, and enter the ISP-specific administrator credentials. This guide explains how to find the correct IP address, locate the default admin and Wi-Fi passwords, change both types of password, and handle restricted access without accidentally deleting the WAN, VLAN, PPPoE, or VoIP configuration.
What to Check Before Logging In
The HG8145V5 is normally supplied as an ISP-managed optical network terminal and gateway. The available menus, management address, and account permissions can vary between countries, carriers, and firmware versions.
Before opening the login page, prepare the following information:
- The exact model printed on the device label.
- The management IP address shown on the label.
- The administrator username and password, if printed.
- The Wi-Fi SSID and wireless password.
- The ISP name and deployment region.
The admin password and Wi-Fi password are separate credentials. Changing the Wi-Fi password does not automatically change the password used to access the web management interface.
| Information | Where to find it |
|---|---|
| Management IP address | Device label, ISP instructions, or the computer's default gateway |
| Admin username and password | Device label or ISP support |
| Wi-Fi SSID and password | Device label, often marked as WLAN Key or Wi-Fi Key |
| PPPoE and VLAN information | ISP or service documentation |
HG8145V5 Default IP Address
The most commonly reported HG8145V5 management address is 192.168.100.1. Some ISP-customized versions use 192.168.1.1 or another local address, so the device label and active default gateway should take priority.
If you are connected to the ONT and do not know the address, check the default gateway assigned to your computer. On Windows, open Command Prompt and run:
Look for Default Gateway under the active Ethernet or Wi-Fi adapter. Enter that address into the browser address bar.
Some carrier-specific HG8145V5 web guides also use 192.168.100.1 for local access. The exact protocol may be HTTP or HTTPS, depending on the installed firmware.
If the address does not open, try the following:
- Connect the computer directly to the HG8145V5 with an Ethernet cable.
- Disconnect VPN software and manually configured proxy settings.
- Check whether the computer received an IP address from the HG8145V5.
- Try the address printed on the label instead of relying on a generic default.
- Use a private browser window or another browser.
How to Log In to HG8145V5
Connect to the ONT
A wired connection is preferred because it remains available even when the wireless settings are incorrect. Connect a computer to one of the HG8145V5 Ethernet ports. You can also connect through the current Wi-Fi network if wireless access is working.
Open the Local Management Page
Enter the management address directly into the browser address bar, for example:
Do not search for the address in a search engine. The page should be opened locally from the computer connected to the HG8145V5.
Enter the Correct Account
Use the administrator username and password printed on the device label or supplied by the ISP. A general Huawei ONT reference also recommends checking the product nameplate because credentials can be changed before delivery.
The following combinations may appear in community discussions or older firmware documentation, but they are not universal HG8145V5 defaults:
admin / adminroot / admintelecomadmin / admintelecom
If the label-specific account fails, repeated guessing is unlikely to solve an ISP permission problem. Contact the ISP before resetting the ONT.
For model identification and procurement confirmation, you can also review the Huawei HG8145V5 product details and compare the label information with the ordered configuration.
Admin Password and Wi-Fi Password
Where to Find the Default Wi-Fi Password
The factory Wi-Fi password is usually printed on the bottom or rear label of the HG8145V5. Look for labels such as Wi-Fi Key, WLAN Key, Wireless Password, or a similar field.
The Wi-Fi SSID may also be printed on the same label. If the SSID or password was changed by the ISP or a previous administrator, the printed value may no longer match the current wireless configuration.
How to Change the Wi-Fi Password
Menu names vary by firmware, but the usual process is:
- Log in to the HG8145V5 web interface.
- Open WLAN, Wi-Fi, or WLAN Basic Configuration.
- Select the 2.4 GHz or 5 GHz wireless network.
- Change the SSID or wireless password as required.
- Click Apply, Save, or the equivalent button.
- Reconnect phones, laptops, cameras, and other wireless devices.
If both Wi-Fi bands use the same SSID, wireless clients may reconnect to either band after the change. The wireless service may restart briefly while the new configuration is applied.
How to Change the Admin Password
After logging in with an account that has permission to edit users, look for System Tools, Account Management, Maintenance, or a similar menu. The exact location depends on the firmware.
- Open the account or system-management page.
- Select the current administrator account.
- Enter the old password and a new password.
- Save the change and store the new credential securely.
- Log in again to confirm that the new password works.
If no account-management menu is visible, the ISP may have removed that permission from the current account. In that case, changing the admin password may require ISP assistance.
Send the model label and deployment region for a configuration review.
Why HG8145V5 Access May Be ISP-Locked
Many HG8145V5 units are installed and managed by an Internet service provider. The ISP may control the WAN connection, GPON registration, VLAN mapping, VoIP service, firmware, and remote-management settings.
This can produce several different access levels:
| What you see | What it usually means | Recommended action |
|---|---|---|
| Login page opens but credentials fail | The ISP changed or restricted the account | Check the label and contact the ISP |
| Basic settings are visible but WAN options are missing | The current account has limited privileges | Ask whether a higher-privilege account or bridge mode is available |
| Bridge Mode is not shown | The ISP firmware may hide or disable the function | Request bridge mode or IP passthrough support |
| Settings return after a reboot | Remote management may be reprovisioning the ONT | Ask the ISP whether remote configuration is enabled |
If you want to use your own router or firewall, ask the ISP whether it supports Bridge Mode, IP passthrough, PPPoE passthrough, or a separate Internet VLAN. Do not copy VLAN or PPPoE settings from another country or carrier.
Factory Reset and Service Recovery
A factory reset should be the last option for a forgotten password. It may remove the configuration that allows the HG8145V5 to register with the ISP and deliver Internet, voice, or IPTV services.
A reset may erase or change:
- PPPoE username and password.
- WAN connection mode.
- VLAN ID and service bindings.
- GPON registration or optical-service parameters.
- VoIP settings.
- Wi-Fi SSID, Wi-Fi password, and administrator accounts.
- ISP remote-management settings.
The device may continue to power on and broadcast Wi-Fi after a reset while the Internet connection remains unavailable. Confirm with the ISP that the ONT can be reprovisioned before pressing the reset button.
For broader Huawei ONT reset and password-recovery scenarios, refer to the Huawei router reset and password recovery guide, then verify the procedure against the exact HG8145V5 firmware.
HG8145V5 Login Troubleshooting
Use the following sequence before performing a factory reset:
- Confirm the exact model and ISP.
- Read the management address and credentials from the device label.
- Connect a computer directly by Ethernet.
- Check the computer's default gateway.
- Try the gateway address in a private browser window.
- Test both HTTP and HTTPS when supported by the firmware.
- Disable VPN and proxy settings temporarily.
- Confirm that the computer received an IP address in the same subnet.
- Try another LAN port or Ethernet cable.
- Contact the ISP if the account or advanced menus remain locked.
| Symptom | Likely cause | Next step |
|---|---|---|
| The login page does not open | Wrong management IP, cable, subnet, or browser path | Check the label, default gateway, cable, and local IP settings |
| The password is rejected | Changed credential or ISP-specific account | Use the label-specific account or contact the ISP |
| Wi-Fi works but the web page does not | Wireless management may be disabled | Try direct Ethernet access |
| Advanced menus are missing | Restricted user role or ISP firmware | Request bridge mode or authorized support |
| Internet stopped after reset | WAN, VLAN, PPPoE, or provisioning data was removed | Ask the ISP to restore the service profile |
Frequently Asked Questions
There is no universal password for every HG8145V5. Use the administrator credentials printed on the device label or supplied by the ISP. Commonly reported combinations may not work on ISP-customized firmware.
Check the bottom or rear label for Wi-Fi Key, WLAN Key, Wireless Password, or a similar field. If the wireless password was changed previously, the printed value may no longer be current.
Yes, if the current account has permission. Look under System Tools, Account Management, Maintenance, or a similar menu. If the menu is unavailable, the ISP may have restricted the account.
The device may be using an ISP-restricted account or customized firmware. Ask the ISP about authorized access, Bridge Mode, IP passthrough, or the required WAN configuration.
Only after confirming with the ISP. A reset can erase PPPoE, VLAN, GPON, VoIP, and remote-management settings and may interrupt Internet or voice service.
Final Takeaway
Start with the management address and credentials printed on the HG8145V5 label. Use a direct Ethernet connection and check the computer's default gateway if the login page does not open.
The admin password, Wi-Fi password, and ISP service credentials are separate. You can usually change the Wi-Fi password after logging in, but administrator access and advanced WAN settings may be restricted by the ISP.
Before resetting the ONT, confirm that the ISP can restore the WAN, VLAN, GPON, and VoIP configuration. For a device-specific review, provide the exact model label, firmware version, ISP, and the setting you need to change through the Router-Switch inquiry page.