Cisco Systems DPC3825, EPC3825, 4034441, 4034138 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 Important Safety Instructions This DocumentImportant Safety Instructions Mitteilung für CATV-Techniker Aviso a los instaladores de sistemas CatvPower Source Warning Ground the ProductVerify the Power Source from the On/Off Power Light Protect the Product from LightningCheck Product Safety Protect the Product When Moving ItCanada EMI Regulation United States FCC ComplianceDeclaration of Conformity Dynamic Frequency Selection DFS Dual Band Frequencies Radiation Exposure StatementsCanada AustraliaCE Compliance National Restrictions France ItalyAntennas LatviaBenefits and Features IntroductionIntroduction Whats In the Carton? Front Panel Description Back Panel Description Back Panel Description What Are the System Requirements for Internet Service? Minimum System Requirements for a PCMinimum System Requirements for Macintosh System Requirements for an Ethernet ConnectionAlready Have an Existing High-Speed Internet Access Account How Do I Subscribe to High-Speed Internet Service?Do Not Have a High-Speed Internet Access Account Rev B How Do I Mount the Modem on a Wall? Optional Before You BeginLocation and Dimensions of the Wall-Mounting Slots Mounting the Residential Gateway on a Wall To connect devices How Do I Connect My Gateway for Internet Service?Connecting and Installing Internet Devices How Do I Connect My Gateway for Internet Service? How Do I Configure My Docsis Residential Gateway? Logging in to the Gateway for the First TimeHow Do I Configure My Docsis Residential Gateway? Setup Quick Setup Configuring Quick Settings Wlan LAN Setup Lan SetupConfiguring Your Network Settings Dhcp  Connected Devices Summary Pre-assigned Dhcp IP Addresses Starting IP AddressSetup Ddns Disabling Ddns Factory Default Settings DdnsWi-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 Section Field Description Basic Settings Wireless Network Wireless ConfigurationNetwork Mode Only, B/G Mixed, B/G/N Mixed factory defaultWireless Wireless Security Section Field Description Wireless Network Name SsidBssid Broadcast SsidWireless Security Page Description Section Field Description Wireless Wireless Security ModeWEP Field DescriptionsWPA Security for Personal Networks WPA or WPA2 Personal ModesWPA-Personal WPA2-PersonalConfigure Wireless Settings Wireless MAC Filter Wireless MAC Filter Page DescriptionMAC Address Filter List Wireless Advanced SettingsSection Field Description Access Access Restriction Wireless Advanced Settings Page Description CTS Protection Mode Beacon IntervalRTS Threshold Section Field Description Dtim IntervalFragmentation Threshold WDS Wireless WDS SettingsWireless WDS Settings Page Description Disable Wireless QoSWireless QoS Page Description Enable Section Field Description No ACKSection Field Description Firewall SPI Firewall Protection Configure SecuritySecurity Firewall Section Field Description Filters Filter Proxy Block Pop-Up WindowsBlock Web Page Cookies Block Java and ActiveX ScriptsDisable Pptp Passthrough Security VPN PassthroughVPN IPSec PassthroughSecurity VPN Security VPN Tunnel Page Description Key Management Key Exchange Method Section Field Description RemoteFqdn Manual Section Field Description KeyAuto IKE Advanced Settings Phase 1 Operation ModeSection Field Description Status Connected or DisconnectedView Log Access Restrictions MAC Address Filtering Control Access to the GatewayAccess Restrictions IP Address Filtering Function Keys Access Restrictions Basic Rules Parental Control check box and click Apply Add RuleRemove Rule Keyword ListBlock Access to Websites Section Field Description Override the Password PasswordRe-Enter Password Access DurationAccess Restrictions Time of Day Rules Access Restrictions Time of Day Rules Page DescriptionAccess Restrictions User Setup Access Restrictions User Setup Page Description Access Restrictions Local Log Section Field Description Inactivity TimeConfigure Applications and Gaming OverviewApplications & Gaming Port Filtering Applications and Gaming Port Filtering Page Description UDP  Both Enable Applications & Gaming Port Range ForwardingSection Field Description Port Filtering Start Port End PortApplications and Gaming Port Range Forward Page Description Section Field Description Port Range Forwarding StartEnd IP AddressApplications & Gaming Port Range Triggering Forwarded Range Start PortApplications & Gaming DMZ Section Field Description End PortApplications and Gaming DMZ Page Description DMZDMZ Hosting Select the desired optionManage the Gateway Administration ManagementAdministration Management Page Description Rev B MTU Field Description Remote Access Remote Management Management PortUPnP IgmpAdministration Reporting Section Field Description Reporting Mail AlertsSmtp Mail Server Mail Address for Alert LogsView Log Administration Diagnostics Administration Backup & Restore Administration Factory Defaults Restore Factory DefaultsMonitor Gateway Status Status GatewayMAC Address CM MAC Address Current TimeStatus Local Network Section Field Description Internet Connection IP AddressDNS1-3 WinsSection Field Description IP Address End IP AddressStatus Wireless Status Wireless Page Description Network Name SsidWide Channel SecurityStatus Docsis WAN Docsis WAN Page DescriptionBootloader Revision Displays the boot revision code versionSection Field Description MAC Address CM MAC Address Current Software RevisionFrequently Asked Questions How Do I Configure TCP/IP Protocol?How 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 Common Troubleshooting Issues Dont understand the front panel status indicatorsHow does the residential gateway connect to my computer? Can I watch TV and surf the Internet at the same time?Tips for Improved Performance Check and CorrectFront Panel LED Status Indicator Functions StepFront Panel Indicator Data Network Registration Complete Normal Operations AC Power applied Front Panel LED Status Indicators During Normal ConditionsFront Panel LED Status Indicators During Special Conditions Special ConditionsDocumentation Copyright Notice TrademarksDisclaimer Software and Firmware Use Customer Service For InformationIf You Have Questions Region Assistance Centers Telephone and Fax NumbersRev B 103
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4034138, EPC3825, 4034441, DPC3825 specifications

Cisco Systems has long been a pioneer in networking technologies, and the DPC3825, EPC3825 models are prime examples of its commitment to providing reliable and advanced solutions for consumers and businesses alike. These models are equipped with features that cater to a variety of networking needs, making them ideal for both residential and small business environments.

At the heart of the Cisco DPC3825 and EPC3825 is a powerful DOCSIS 3.0 cable modem that supports multiple downstream and upstream channels, allowing for high-speed internet connectivity. This capability enhances the overall bandwidth management, enabling multiple users to enjoy seamless internet access. With download speeds of up to 600 Mbps and upload speeds reaching 120 Mbps, these devices ensure that high-definition streaming, online gaming, and video conferencing can occur without interruptions.

One key feature of these models is their integrated Wi-Fi capabilities. Utilizing dual-band wireless technology, the DPC3825 and EPC3825 can operate on both 2.4GHz and 5GHz bands, providing greater flexibility and reduced interference. This setup allows users to connect a range of devices, from smartphones and tablets to smart home equipment, without compromising on performance.

Security is a priority in today’s online landscape, and Cisco has incorporated advanced security measures into these models. They come equipped with robust firewalls, encryption protocols, and support for various authentication methods, ensuring that users’ data remains safe from unauthorized access. Moreover, the user-friendly web interface allows for easy network management and configuration, enabling users to customize their settings according to their specific needs.

The DPC3825 and EPC3825 are also designed with energy efficiency in mind. The devices consume minimal power while still delivering robust performance, contributing to lower electricity bills and a reduced environmental footprint. Their compact design allows for easy placement in any home or office environment, making them unobtrusive yet effective.

Furthermore, these models offer features like Quality of Service (QoS), which prioritizes bandwidth for high-priority applications such as video streaming and VoIP calls. This ensures that all activities on the network operate smoothly, even during peak usage times.

In summary, Cisco's DPC3825 and EPC3825 cable modems exemplify high performance, security, and energy efficiency. With their advanced features and technologies, they cater to the evolving needs of users, making them a preferred choice for reliable internet connectivity in homes and small businesses.
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