Cisco Systems DPC3925, EPC3925, 4031761, 4031762, 4033836 How Do I Renew the IP Address on My PC?

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Frequently Asked Questions

5Select both Obtain an IP address automatically and Obtain DNS server address automatically in the Internet Protocol (TCP/IP) Properties window, and then click OK.

6Click Yes to restart your computer when the Local Network window opens. The computer restarts. The TCP/IP protocol is now configured on your PC, and your Ethernet devices are ready for use.

7Try to access the Internet. If you cannot access the Internet, contact your service provider for further assistance.

Configuring TCP/IP on Macintosh Systems

1Click the Apple icon in the upper-left corner of the Finder. Scroll down to Control Panels, and then click TCP/IP.

2Click Edit on the Finder at the top of the page. Scroll down to the bottom of the menu, and then click User Mode.

3Click Advanced in the User Mode window, and then click OK.

4Click the Up/Down selector arrows located to the right of the Connect Via section of the TCP/IP window, and then click Using DHCP Server.

5Click Options in the TCP/IP window, and then click Active in the TCP/IP Options window.

Note: Make sure that the Load only when needed option is unchecked.

6Verify that the Use 802.3 option located in the upper-right corner of the TCP/IP window is unchecked. If there is a check mark in the option, uncheck the option, and then click Info in the lower-left corner.

7Is there a Hardware Address listed in this window?

If yes, click OK. To close the TCP/IP Control Panel window, click File, and then scroll down to click Close. You have completed this procedure.

If no, you must power off your Macintosh.

8With the power off, simultaneously press and hold down the Command (Apple), Option, P, and R keys on your keyboard. Keeping those keys pressed down, power on your Macintosh but do not release these keys until you hear the Apple chime at least three times, then release the keys and let the computer restart.

9When your computer fully reboots, repeat steps 1 through 7 to verify that all TCP/IP settings are correct. If your computer still does not have a Hardware Address, contact your authorized Apple dealer or Apple technical support center for further assistance.

Q. How Do I Renew the IP Address on My PC?

A. If your PC cannot access the Internet after the residential gateway is online, it is possible that your PC did not renew its IP address. Follow the appropriate instructions in this section for your operating system to renew the IP address on your PC.

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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 LightTelephone Equipment Notice Check Product SafetyProtect the Product When Moving It Dynamic Frequency Selection DFS Dual Band Frequencies Declaration of ConformityCanada EMI Regulation Australia Radiation Exposure StatementsCanada CE Compliance France Italy Latvia National RestrictionsAntennas Introduction Benefits and FeaturesIntroduction Whats In the Carton? Front Panel Description Back Panel Description Back Panel Description System Requirements for an Ethernet Connection What Are the System Requirements for Internet Service?Minimum System Requirements for a PC Minimum System Requirements for MacintoshDo 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 B 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 Device Types What Are the Requirements for Telephone Service?Telephone Wiring Requirements Number of Telephone DevicesTo connect devices Connecting and Installing Internet DevicesRev B Rev B 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 LAN Setup Lan SetupConfiguring Your Network Settings Starting IP Address Dhcp Connected Devices Summary  Pre-assigned Dhcp IP AddressesLAN Static DNS Domain Name Server Setup DdnsSection Field Description Maximum Number of Dhcp Users Client Lease TimeDdns Disabling Ddns Factory Default SettingsWi-Fi Protected Setup WPS Configure Wireless SettingsWireless Basic Settings WPS Push Button Setup Option Section Field Description Basic SettingsWi-Fi Protected Setup Configuration WPS Setup Using the Gateway PIN Option Only, B/G Mixed, B/G/N Mixed factory default Section Field Description Basic Settings Wireless NetworkWireless Configuration Network ModeBroadcast Ssid Wireless Wireless SecuritySection Field Description Wireless Network Name Ssid BssidField Descriptions Wireless Security Page DescriptionSection Field Description Wireless Wireless Security Mode WEPSecurity for Personal Networks WPA or WPA2 Personal Modes WPAConfigure Wireless Settings Wireless MAC Filter Page Description Wireless MAC FilterMAC Address Filter List Wireless Advanced SettingsSection Field Description Access Access Restriction Wireless Advanced Settings Page Description Beacon Interval CTS Protection ModeRTS Threshold Section Field Description Dtim IntervalFragmentation Threshold WDS Wireless WDS SettingsWireless WDS Settings Page Description Disable Wireless QoSWireless QoS Page Description Section Field Description No ACK EnableSection Field Description Firewall SPI Firewall Protection Configure SecuritySecurity Firewall Block Web Page Cookies Block IP Flood Detection checked factory defaultSection Field Description Filters Filter Proxy Block Pop-Up WindowsIPSec Passthrough Disable Pptp PassthroughSecurity VPN Passthrough VPNSecurity VPN Security VPN Tunnel Page Description Key Management Key Exchange Method Section Field Description RemoteFqdn Manual Section Field Description KeyAuto IKE Connected or Disconnected Advanced SettingsPhase 1 Operation Mode Section Field Description StatusView Log Access Restrictions MAC Address Filtering Control Access to the GatewayAccess Restrictions IP Address Filtering Function Keys Access Restrictions Basic Rules Keyword List Parental Control check box and click ApplyAdd Rule Remove RuleAccess Duration Block Access to WebsitesSection Field Description Override the Password Re-Enter PasswordAccess 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 LogApplications and Gaming Port Filtering Page Description Configure Applications and GamingOverview Applications & Gaming Port FilteringUDP Applications & Gaming Port Range ForwardingTCP IP Address Applications and Gaming Port Range Forward Page DescriptionSection Field Description Port Range Forwarding Start EndForwarded Range Start Port Applications & Gaming Port Range TriggeringSection Field Description End Port Applications & Gaming DMZSelect the desired option Applications and Gaming DMZ Page DescriptionDMZ DMZ HostingManage the Gateway Administration ManagementAdministration Management Page Description WAN MTU Igmp Field Description Remote Access Remote ManagementManagement Port UPnPMail Address for Alert Logs Administration ReportingSection Field Description Reporting Mail Alerts Smtp Mail ServerView Log Administration Diagnostics Administration Backup & Restore Restore Factory Defaults Administration Factory DefaultsCurrent Time Monitor Gateway StatusStatus Gateway MAC Address CM MAC AddressWins Status Local NetworkSection Field Description Internet Connection IP Address DNS1-3End IP Address Status Wireless Security Status Wireless Page DescriptionNetwork Name Ssid Wide ChannelDocsis 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? What if I dont subscribe to cable TV? How do I arrange for installation?Renewing the IP Address on Windows NT, 2000, or XP Systems Can I watch TV and surf the Internet at the same time? Common Troubleshooting IssuesDont understand the front panel status indicators How does the residential gateway connect to my computer?Check and Correct Tips for Improved PerformanceStep Front Panel LED Status Indicator Functions100 Rev B Front Panel LED Status Indicators During Normal Conditions Normal Operations AC Power appliedSpecial Conditions Front Panel LED Status Indicators During Special ConditionsSoftware and Firmware Use TrademarksPublication Disclaimer Copyright104 Rev B If You Have Questions For Information
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4031761, 4033836, DPC3925, 4031762, EPC3925 specifications

Cisco Systems is a leading global technology company known for its networking hardware, software, and telecommunication equipment. Among its expansive product line, the DPQ2160 DOCSIS 2.0 modem series and the EPC3925 are significant models utilized in various internet service delivery scenarios.

The DPQ2160 is a DOCSIS 2.0 compliant modem that offers an efficient solution for cable internet services. It features an advanced design to enhance data transfer rates and is compatible with both downstream and upstream channels. With a maximum downstream data rate of 38 Mbps, this modem supports high-speed internet access ideal for home and small business environments. It also ensures reliable connectivity through its robust channel bonding capabilities, which allow multiple data streams. Additionally, the DPQ2160 integrates a user-friendly web interface for easy management and configuration, making it simple for users to troubleshoot and monitor their connection.

Cisco’s EPC3925 is a versatile gateway that satisfies both broadband connectivity and Wi-Fi needs. It combines DOCSIS 3.0 capabilities, enabling high-definition video streaming, online gaming, and other bandwidth-intensive applications. The EPC3925 supports various wireless standards, including 802.11n, providing a strong and reliable Wi-Fi connection throughout homes or offices. Its dual-band feature ensures users can connect multiple devices while minimizing interference. Furthermore, the EPC3925 offers advanced security features, including built-in firewall capabilities and support for Wi-Fi Protected Access (WPA) encryption, which safeguards users' networks.

Both the DPQ2160 and EPC3925 incorporate technologies aimed at improving user experience. They are designed for easy setup, often featuring plug-and-play capabilities that allow for rapid installation without the need for extensive configuration knowledge. Cisco’s emphasis on quality and reliability ensures that these devices consistently provide the performance required in today’s data-driven world.

The models also demonstrate strong backward compatibility with earlier DOCSIS versions, ensuring that users can maintain their internet service even if they have older infrastructure. This versatility is vital for service providers, allowing them to deploy these devices in various scenarios with minimum disruption.

Overall, Cisco's DPQ2160 and EPC3925 modems reflect the company’s commitment to driving connectivity and communication innovations, providing users with essential tools for navigating an increasingly online world. With advanced features and robust performance, these devices exemplify Cisco's dedication to ensuring seamless and secure internet access.
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