How to Recover Admin Password

Issue

A lot of times, the users have forgotten “Admin Password” on the phone's web access page and have no access to the Factory Reset option on the phone menu.

Triage Questions

1. Verify if the phone is configured with DHCP or a static IP address

2. Is the phone provisioned? If you are unsure, you can run Wireshark capture when the phone is booting up. We can identify if the phone downloads the configuration file from a Config Server from the traces. Read here on how to run Wireshark capture from the phone.

Read more to understand how provisioning works in Grandstream devices.

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Method 1: via TFTP using DHCP option 66

a. Generate cfgMAC.xml for the phone

1. Download XML File Generator Tool

2. Upload a Config Template with admin password defined into the tool. You may refer Config_Example_Ver1.txt in the XML File Generator Tool folder. (In this case, P2 is associated as Admin Password of Web Access page)

3. Use Manual Setting for single device and Create XML Files.

Figure 1: Upload a Config Template with admin password defined into the tool.

Figure 2: Use Manual Setting for single device and Create XML Files.

Figure 3: cfgMAC.xml

b. Upload cfgMAC.xml to the phone via TFTP

1. Download TFTPd on your PC

2. Connect the phone's LAN port to the PC's Ethernet port. Make sure they form a closed network

3. Configure the PC's ethernet interface to use a static IP address (for eg. 192.168.6.60)

4. Open TFTPd

a. Go to TFTP server > Browse > select the folder that contains cfgMAC.xml, and configure the server interface to the PC's static IP address (for eg. 192.168.5.60)

b. go to DHCP tab > Settings > and set the following : - IP Pool Start Address: 192.168.5.1 - Size of Pool: 100 - Def.Router: 192.168.5.1 - Mask: 255.255.255.0 - Additional Option: 66 in the first field, and the next field: static IP address of the PC (for eg. 192.168.5.60)

- Bind DHCP to this address > select static IP address of the PC (for eg. 192.168.5.60) - click OK

- At the Main window, Server Interface: select static IP address of the PC

6. Boot up the phone. It should receive an IP address from the DHCP server and download the configuration file with new admin password

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Method 2: via UCM's Zero Provisioning