DPC3925 - Router CISCO - Free user manual and instructions
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| Product Type | Cable Modem Router Combo |
| Brand | Cisco |
| Model | DPC3925 |
| Dimensions (W x D x H) | 8.5 x 6.5 x 2.0 inches (216 x 165 x 51 mm) |
| Weight | 1.2 lbs (0.54 kg) |
| Power Supply | 12V DC, 2.5A external adapter |
| Power Consumption | 15W typical |
| DOCSIS Standard | DOCSIS 3.0 |
| Maximum Downstream Speed | 343 Mbps (8 channels bonded) |
| Maximum Upstream Speed | 131 Mbps (4 channels bonded) |
| Wireless Standard | Wi-Fi 802.11b/g/n |
| Wireless Frequency | 2.4 GHz only |
| Wireless Speed | Up to 300 Mbps |
| Number of LAN Ports | 4 x 10/100/1000 Mbps Gigabit Ethernet |
| USB Ports | 1 x USB 2.0 |
| Coaxial Connection | 1 x F-type female |
| Telephone Ports | 2 x RJ-11 (VoIP) |
| Security | WEP, WPA, WPA2-PSK, SPI firewall |
| Recommended Placement | Vertical or horizontal, well-ventilated |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 70°C (-4°F to 158°F) |
| Repairability Index | 6/10 (moderate ease of disassembly) |
Frequently Asked Questions - DPC3925 CISCO
How do I reset the Cisco DPC3925 to factory defaults?
Press and hold the reset button on the back of the device for at least 10 seconds using a paperclip. The router will reboot with default settings. Note that this erases all custom configurations.
What is the default IP address and login for the DPC3925?
The default IP address is 192.168.0.1 (or 192.168.1.1). The default username is admin and password is password (or left blank). Check the sticker on the device for exact credentials.
Can I use the DPC3925 with any cable internet provider?
The DPC3925 is a DOCSIS 3.0 cable modem. It is compatible with many cable ISPs like Comcast, Cox, and Spectrum, but you should verify with your provider for compatibility and activation.
How do I enable Wi-Fi on the Cisco DPC3925?
Access the router's web interface at 192.168.0.1, go to Wireless settings, and enable the wireless radio. You can set the SSID and password under the security tab.
Why is my DPC3925 not connecting to the internet?
First, check the coax cable connection and power. Then verify the modem is activated by your ISP. Look for the online LED: solid green indicates a connection. If blinking, contact your provider.
How can I improve the Wi-Fi range of my DPC3925?
Place the router in a central location away from obstructions. Update the firmware to the latest version. Consider using a Wi-Fi extender or changing the channel in the wireless settings to avoid interference.
Does the DPC3925 support VoIP?
Yes, the DPC3925 has two RJ-11 telephone jacks for Voice over IP (VoIP) services. You need a subscription from a VoIP provider to use this feature.
What should I do if I forgot the router password?
Perform a factory reset by holding the reset button for 10 seconds. This will reset the admin password to the default. Then log in with the default credentials and set a new password.
How do I update the firmware on the DPC3925?
Log in to the web interface, go to Administration > Firmware Upgrade. Download the latest firmware from Cisco's support site and upload it. Do not power off during the update.
Can I connect a USB drive to the DPC3925?
Yes, the USB port allows you to share a USB drive over the network. Access it via the router's web interface under USB settings. Supported formats: FAT32, NTFS.
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