Gateway EPC3925 Common Troubleshooting Issues, Dont understand the front panel status indicators

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Frequently Asked Questions

Q.How does the residential gateway connect to my computer?

A.The residential gateway connects to the PC using a wireless connection or the 10/100/1000BASE-T Ethernet port on your PC. If you want to use an Ethernet interface, Ethernet cards available from your local PC or office supply retailer, or from your service provider. For best performance over an Ethernet connection, your PC should be equipped with a Gigabit Ethernet card.

Q.After my residential gateway is connected, how do I access the Internet?

A.Your local service provider becomes your Internet Service Provider (ISP). They

offer a wide range of services including e-mail, chat, news, and information services. Your service provider will provide the software you will need.

Q.Can I watch TV and surf the Internet at the same time?

A.Absolutely! If you subscribe to cable television service, you can watch TV and use your residential gateway at the same time by connecting your TV and your residential gateway to the cable network using an optional cable signal splitter.

Common Troubleshooting Issues

I don't understand the front panel status indicators

See Front Panel LED Status Indicator Functions (on page 99), for more detailed information on front panel LED status indicator operation and function.

The residential gateway does not register an Ethernet connection

Verify that your computer has an Ethernet card and that the Ethernet driver software is properly installed. If you purchase and install an Ethernet card, follow the installation instructions very carefully.

Verify the status of the front panel status indicator lights.

The residential gateway does not register an Ethernet connection after connecting to a hub

If you are connecting multiple PCs to the residential gateway, you should first connect the modem to the uplink port of the hub using the correct crossover cable. The LINK LED of the hub will illuminate continuously.

The residential gateway does not register a cable connection

The modem works with a standard 75-ohm RF coaxial cable. If you are using a different cable, your residential gateway will not function properly. Contact your cable service provider to determine whether you are using the correct cable.

Your NIC card or USB interface may be malfunctioning. Refer to the troubleshooting information in the NIC or USB documentation.

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Contents This Document Important Safety InstructionsImportant Safety Instructions Aviso a los instaladores de sistemas Catv Mitteilung für CATV-TechnikerGround the Product Power Source WarningProtect the Product from Lightning Verify the Power Source from the On/Off Power LightProtect the Product When Moving It Check Product SafetyTelephone Equipment Notice Canada EMI Regulation Declaration of ConformityDynamic Frequency Selection DFS Dual Band Frequencies Canada Radiation Exposure StatementsAustralia CE Compliance France Italy Latvia National RestrictionsAntennas Introduction Benefits and FeaturesIntroduction Whats In the Carton? Front Panel Description Back Panel Description Back Panel Description Minimum System Requirements for a PC What Are the System Requirements for Internet Service?Minimum System Requirements for Macintosh System Requirements for an Ethernet ConnectionDo Not Have a High-Speed Internet Access Account Want to Use the Application Server for Telephone Service Already Have an Existing High-Speed Internet Access AccountRev a Before You Begin How Do I Mount the Modem on a Wall? OptionalLocation and Dimensions of the Wall-Mounting Slots Mounting the Residential Gateway on a Wall Telephone Wiring Requirements What Are the Requirements for Telephone Service?Number of Telephone Devices Telephone Device TypesTo connect devices Connecting and Installing Internet DevicesRev a Rev a Logging in to the Gateway for the First Time How Do I Configure My Docsis Residential Gateway?How Do I Configure My Docsis Residential Gateway? Setup Quick Setup Configuring Quick Settings Wlan Configuring Your Network Settings Setup Lan SetupLAN  Connected Devices Summary Dhcp Pre-assigned Dhcp IP Addresses Starting IP AddressSetup Ddns Ddns Disabling Ddns Factory Default SettingsWireless Basic Settings Configure Wireless SettingsWi-Fi Protected Setup WPS Wi-Fi Protected Setup Configuration Section Field Description Basic SettingsWPS Push Button Setup Option WPS Setup Using the Gateway PIN Option Wireless Configuration Section Field Description Basic Settings Wireless NetworkNetwork Mode Only, B/G Mixed, B/G/N Mixed factory defaultSection Field Description Wireless Network Name Ssid Wireless Wireless SecurityBssid Broadcast SsidSection Field Description Wireless Wireless Security Mode Wireless Security Page DescriptionWEP Field DescriptionsSecurity for Personal Networks WPA or WPA2 Personal Modes WPAConfigure Wireless Settings Wireless MAC Filter Page Description Wireless MAC FilterSection Field Description Access Access Restriction Wireless Advanced SettingsMAC Address Filter List Wireless Advanced Settings Page Description Beacon Interval CTS Protection ModeFragmentation Threshold Section Field Description Dtim IntervalRTS Threshold Wireless WDS Settings Page Description Wireless WDS SettingsWDS Wireless QoS Page Description Wireless QoSDisable Section Field Description No ACK EnableSecurity Firewall Configure SecuritySection Field Description Firewall SPI Firewall Protection Section Field Description Filters Filter Proxy Block IP Flood Detection checked factory defaultBlock Pop-Up Windows Block Web Page CookiesSecurity VPN Passthrough Disable Pptp PassthroughVPN IPSec PassthroughSecurity VPN Security VPN Tunnel Page Description Fqdn Section Field Description RemoteKey Management Key Exchange Method Auto IKE Section Field Description KeyManual Phase 1 Operation Mode Advanced SettingsSection Field Description Status Connected or DisconnectedView Log Access Restrictions IP Address Filtering Control Access to the GatewayAccess Restrictions MAC Address Filtering Function Keys Access Restrictions Basic Rules Add Rule Parental Control check box and click ApplyRemove Rule Keyword ListSection Field Description Override the Password Block Access to WebsitesRe-Enter Password Access DurationAccess Restrictions Time of Day Rules Page Description Access Restrictions Time of Day RulesAccess Restrictions User Setup Access Restrictions User Setup Page Description Section Field Description Inactivity Time Access Restrictions Local LogOverview Configure Applications and GamingApplications & Gaming Port Filtering Applications and Gaming Port Filtering Page DescriptionTCP Applications & Gaming Port Range ForwardingUDP Section Field Description Port Range Forwarding Start Applications and Gaming Port Range Forward Page DescriptionEnd IP AddressForwarded Range Start Port Applications & Gaming Port Range TriggeringSection Field Description End Port Applications & Gaming DMZDMZ Applications and Gaming DMZ Page DescriptionDMZ Hosting Select the desired optionAdministration Management Page Description Administration ManagementManage the Gateway WAN MTU Management Port Field Description Remote Access Remote ManagementUPnP IgmpSection Field Description Reporting Mail Alerts Administration ReportingSmtp Mail Server Mail Address for Alert LogsView Log Administration Diagnostics Administration Backup & Restore Restore Factory Defaults Administration Factory DefaultsStatus Gateway Monitor Gateway StatusMAC Address CM MAC Address Current TimeSection Field Description Internet Connection IP Address Status Local NetworkDNS1-3 WinsEnd IP Address Status Wireless Network Name Ssid Status Wireless Page DescriptionWide Channel SecurityDocsis WAN Page Description Status Docsis WANMonitor Gateway Status How Do I Configure TCP/IP Protocol? Frequently Asked QuestionsHow Do I Renew the IP Address on My PC? Renewing the IP Address on Windows NT, 2000, or XP Systems How do I arrange for installation?What if I dont subscribe to cable TV? Dont understand the front panel status indicators Common Troubleshooting IssuesHow does the residential gateway connect to my computer? Can I watch TV and surf the Internet at the same time?Check and Correct Tips for Improved PerformanceStep Front Panel LED Status Indicator Functions100 Rev a Front Panel LED Status Indicators During Normal Conditions Normal Operations AC Power appliedSpecial Conditions Front Panel LED Status Indicators During Special ConditionsDisclaimer TrademarksDocumentation Copyright Notice Software and Firmware UseFor Information Customer ServiceIf You Have Questions Region Assistance Centers Telephone and Fax Numbers

DPC3925, EPC3925 specifications

The Gateway EPC3925 and DPC3925 are powerful wireless gateway devices that provide high-speed internet access and advanced networking features. Designed primarily for residential and small business environments, these devices offer a combination of ease of use, reliability, and performance that makes them a popular choice among users.

One of the main features of the Gateway EPC3925 and DPC3925 is their support for DOCSIS 3.0 technology. This enables the devices to deliver high-speed internet connectivity by allowing multiple channels to be bonded together, significantly increasing download and upload speeds compared to previous DOCSIS standards. DOCSIS 3.0 can support speeds of up to 1 Gbps, making it suitable for bandwidth-intensive applications like streaming HD videos, online gaming, and large file downloads.

Both models are equipped with a built-in Wireless-N (802.11n) router, which allows users to create a wireless network in their home or office easily. This standard provides a stable connection with improved range and speed compared to older wireless standards. Additionally, users can connect multiple devices, such as smartphones, tablets, laptops, and smart TVs, without experiencing significant drops in performance.

Security is a critical aspect of the Gateway EPC3925 and DPC3925. These devices come equipped with several security features to protect the network from unauthorized access. The devices support WPA/WPA2 encryption protocols, ensuring that wireless transmissions are secure. Moreover, they offer features such as a firewall and DMZ settings, which provide additional layers of protection for users’ data.

Another noteworthy characteristic of the EPC3925 and DPC3925 is their user-friendly interface. The web-based management console allows users to easily configure settings, manage connected devices, and monitor network performance. This intuitive interface makes it accessible for users with varying levels of technical expertise.

The Gateway EPC3925 and DPC3925 are also compatible with multiple ISPs, making them versatile options for customers looking for reliable internet connectivity solutions. Their compact design allows for easy placement in various locations, ensuring that users can integrate them seamlessly into their existing setups.

In summary, the Gateway EPC3925 and DPC3925 provide a robust solution for those looking for high-speed internet access combined with advanced networking features. With their DOCSIS 3.0 support, Wireless-N capabilities, and comprehensive security measures, these gateways are designed to meet the demands of modern internet usage, making them ideal for both home and small office environments.
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