3Com 3CRWE777A manual Network Connection Problems

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24CHAPTER 5: TROUBLESHOOTING

■Make sure the PCI slot is configured to support INTA.

■Be sure that INTA for the slot is assigned to a free interrupt (IRQ) number.

■If it still does not work, remove the wireless adapter. Delete the appropriate system file (see list below) from c:\windows\system:

■Windows 9x: cw10.sys

■Windows 2000: cw10nt.sys

■Windows Me: cw10nt.sys

Go to "Control Panel" and delete the wireless PCI card from your network configuration menu. Restart your computer and reinstall the card as described in Chapter 2.

Network Connection Problems

If the Link LED on the wireless PCI card does not light, or if you cannot access any network resources from the computer, check the following:

■Make sure the correct software driver is installed for your operating system. If necessary, try reinstalling the driver.

■Make sure the computer and other network devices are receiving power.

■The access point you want to attach to may be defective. Try using another access point.

■If you cannot access a Windows or NetWare service on the network, check that you have enabled and configured the service correctly. If you cannot connect to a particular server, be sure that you have access rights and a valid ID and password.

■If you cannot access the Internet, be sure you have configured your system for TCP/IP.

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Contents AirConnect Wireless PCI Card User Guide United States Government Legend Contents Index Warranty and Regulatory Compliance Overview Package ChecklistIntroduction Hardware Description FeaturesApplications Status LED Indicator System Requirements Always On Blinking OffInstallation Card Installation ProcedureInstallation Windows 95/98/2000/Me Driver Installation Procedure Installation Windows NT 4.0 Driver Installation Procedure Click Close Windows NT 4.0 Driver Installation Procedure Page Planning Ad hoc Wireless LANNetwork Topologies Infrastructure Wireless LAN Stationary Wireless PCs Setting the Communication DomainRoaming Wireless PCs Page Installing the Wireless LAN Configuration Utility Using the Wireless LAN Configuration UtilityLink Information Screen Configuration Screen Configuration and Diagnostic Utility Encryption Screen Page Preliminary Troubleshooting TroubleshootingPCI Compatibility Network Connection Problems Preliminary Troubleshooting Page Technical Specifications SpecificationsCertification World Wide Web Site Online Technical Services3Com FTP Site Support from Your Network Supplier Support from 3ComEurope Returning Products for Repair Country Telephone Number Fax NumberIndex NumbersGeneral description Hardware description Wireless LAN Ad hoc 3Com Corporation Limited Warranty 3Com AirConnect 11 Mbps Wireless LANYear 2000 Warranty Regulatory Compliance Information Limitation of LiabilityJapan Vcci Class B Compliance Bsmi Class a Compliance Taiwan Important Read Before Using This Product 3Com End User Software License Agreement

3CRWE777A specifications

The 3Com 3CRWE777A is a versatile wireless networking solution designed to provide reliable connectivity for small to medium-sized businesses. This wireless access point is notable for its robust features, making it a popular choice for demanding environments.

One of the main features of the 3CRWE777A is its adherence to the IEEE 802.11b/g standard, which allows for seamless wireless communication. Operating on both the 2.4 GHz and 5 GHz frequency bands, it supports a diverse range of devices while reducing interference. This dual-band capability is essential for optimizing network performance and ensuring that users can enjoy fast and stable connections.

The device boasts a maximum data transfer rate of 54 Mbps for 802.11g and up to 11 Mbps for 802.11b, which allows for efficient handling of multiple users simultaneously. This performance is particularly beneficial in settings where bandwidth-intensive applications are in use, such as video conferencing and online collaboration tools.

A key characteristic of the 3CRWE777A is its support for advanced security protocols, including WPA, WPA2, and WEP. These security features ensure that sensitive data remains protected against unauthorized access, making it well-suited for businesses that handle confidential information. Additionally, the device offers MAC address filtering and SSID broadcast control, providing administrators with granular control over network access.

The 3CRWE777A is equipped with an Ethernet port for wired connections, enabling integration with existing network infrastructures. The ability to function as both a standalone access point and as part of a larger network system enhances its flexibility. Moreover, the device supports Power over Ethernet (PoE), simplifying the installation process by allowing it to receive power and data over a single cable.

Another notable aspect is its user-friendly management interface, which simplifies the setup and monitoring of network performance. Administrators can easily configure user settings, view connected devices, and perform diagnostics.

Overall, the 3Com 3CRWE777A stands out for its solid performance, security features, and flexibility, making it an excellent choice for businesses looking to enhance their wireless capabilities while maintaining robust network integrity.
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