Cabletron Systems Troubleshooting, 3Com Support Center, Verify AP Operation, State Test Passed

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34CHAPTER 2: INSTALLING ACCESS POINT HARDWARE

Troubleshooting	Check the following symptoms and their possible causes before contacting the
	3Com Support Center.

Verify AP Operation

1If the AP does not power up, you may be experiencing one of the following:

■Faulty AP power supply

■Failed AC supply

■Electrical Management System (EMS) operating outlet

2After the AP resets and hardware is initialized, it performs an SRAM test. If the test passes, all three LEDs turn on. If the test fails, the LEDs all turn off and the AP resets. The LEDs turn off sequentially, in the order shown, as each of the following tests pass.

	LED					State	Test Passed

	Power					Blinks	Bootup and run-time codes
						continuously	downloaded to AP flash memory


							successful. Run-time code controls the
							successful. Run-time code controls the
							AP.
							AP.

	Wireless LAN Activity					Off	Serial port initialized, FIFO buffer
							flushed, serial port to AP connection
							flushed, serial port to AP connection
							checked.
							checked.

	Wired LAN Activity					Off	LAN adapter present.

Identify wired network problems:

3No operation:

■Verify AP conﬁguration via Telnet, PPP or UI. Review procedures for Ethernet and serial connection of the AP. Review AP ﬁrmware revisions and update procedures.

■Verify network conﬁguration by ensuring that there are no duplicate IP addresses. Power down the device in question and ping the assigned address of the device. Ensure no other device responds to that address.

4AP powered on but has no connection to the wired network:

■Check connections for proper wiring.

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Contents AirConnect 11 Mbps Wireless LAN Access Point User Guide VersionClara, California 3Com CorporationBayfront Plaza Santa 95052-8145Contents Installing Access Point Hardware Monitoring Wireless Clients Access Point Installation Conﬁguring the AP Access Point Specifications Technical Support Page AirConnect Network Overview of Digital Wireless NetworkingIntroduction TopologiesOverview of Digital Wireless Networking AirConnect Network Topologies Point AirConnect AccessWireless clients To the Ethernet LANAirConnect Access Point Radio Basics PowerBASE-TWireless clients and APs Results in the original digital dataRadio Basics Wireless LAN Service Area 802.1d Spanning Tree SupportSite Surveys Filtering and Access Control Network Control Protocol NCP as described PPP Connection Data Rate Requirement Overview of Digital Wireless Networking Theory of Operation Simple Network Management Protocol Snmp Management protocol MIB Using SnmpProgrammable Snmp Trap Support Increased MIB SupportUsing the User Interface Method DescriptionPackage Contents Installing Access Point HardwarePrecautions RequirementsRemote power distribution system, Part Number AP-PS-11 Power OptionsStandard power supply 115/230VAC, 50/60Hz, 24V/14 US line cord Part NumberBelow Mounting the APWall Mount To mount an AP on a wall Ceiling Mount To mount an AP on a ceiling Mounting the AP PowerBASE-T UsingPowerBASE-T can be used to power the AP Off Blinking Power No power Power on During boot sequence LED IndicatorsCondition, and other activity Verify AP Operation Troubleshooting3Com Support Center Electrical Management System EMS operating outletVerify Network Wiring Topology Network connection veriﬁcationPage Interface Statistics Monitoring StatisticsSystem Properties Forwarding CountsRadio Frequency Ethernet StatisticsStatistics Press Esc or Previous F4 to exit MiscellaneousStatistics window, select Main Menu→Misc Statistics Type Name DefinitionKnown APs Clearing StatisticsSelect Clear All Statistics Help File Access Gaining Access to the User Interface UI Using a Web BrowserGaining access to the User Interface UI Setup Network Web Server Help File AccessSelect Close/Exit Accessing the Web Browser UISelect Virtual Directory Select System ConﬁgurationSelect Special Functions Select Reset AP Select Save F1 to save the conﬁgurationUnder Conﬁguration, select Security Select System Password Type the case sensitive AP nameSelect Easy Setup--Easy Setup Click Add/Delete Gateways Select Easy Setup--Easy SetupParameter Description Adding or Deleting a Range of Allowed Wireless Clients Adding Allowed Wireless ClientsAdding or Deleting Disallowed Wireless Clients Enabling or Disabling Encryption For the Short RF Preamble setting, click DisabledConsiderations Select Conﬁguration--SecurityInterface Description Default Condition Enable or disable interfaces on the APFrequency No. of Channels Country Enter the Multicast Mask data and voice values Select Enabled or Disable All for All Snmp Traps Snmp Trap Description Default ValueConﬁguring the Originating Modem Filtering to Forward Packets Conﬁguring the Answering ModemFiltering to Discard Packets Disabling Type Filtering Removing Filtered Packet Types Networking ProtocolsClick Delete Filter Under Conﬁguration, select FirmwareActive. Clear the wireless client association table for Special Function DescriptionWireless Clients Monitoring Wireless ClientsSelect Regular at the Wireless Clients prompt Indicates a 3Com voice-enabled device Latest version. Refer to Manually Updating AP Firmware on Ascii InterfaceVersions Conﬁgure the AP for the following Enable serial portArrow/Function Key Control Character To exit from submenus, press Esc Prompt DescriptionTo enable and conﬁgure the serial port connection on the AP Select Telnet LoginsPress Tab to select System Password Conﬁguring The Serial PortHanging Up Setting DescriptionConﬁguring the Dial-Up System Select Modem HangupInstallation WindowConfiguring the AP That can associate with this AP. The default is Disabled Wsaid Establishing a Connection PPP DirectPPP with Modems Answering AP Set the Connect Mode to AnswerOriginating AP From the answering APs UIFor automatic dial-out, reset the AP Range of Wireless Clients Press up/down arrows to toggle between range and individualEnable/Disable the ACL Removing Allowed Wireless ClientsRemoving All Allowed Wireless Clients Removing Disallowed Wireless Clients Load ACL from Wireless Client ListAdding Disallowed Wireless Clients Address FilteringClients from the AP Clearing WirelessSetting Logging OptionsAP Firmware Manually UpdatingPrevious version of AP ﬁrmware Select Alter Filenames/HELP URL/TFTP and press Enter Remainder of this procedure uses Windows 98 as an exampleType the ﬁrmware ﬁle name in the Download Filename ﬁeld Select Transfer from the emulation program menu bar Open the Special Functions windowSelect Send File Download is complete when the UI displays Select Alter Filenames/HELP URL/TFTP Server and press EnterPerforming Pings Using MD5Authentication Extended RoamingEncryption Wireless client and the access pointHex-digit sequence Press the Tab key to highlight .Short RF Preamble Enabled Restoring ConﬁgurationsSelect Restore Factory Conﬁguration Radio Characteristics Frequency No. of Channels Country Access Point SpecificationsPhysical Characteristics Output CharacteristicsNetwork Characteristics Online Technical ServicesTechnical Support World Wide Web SiteLatin America North AmericaTo obtain an RMA number, call or fax Page Index AsciiSnmp agent 3Com Corporation Limited Warranty 3Com AirConnect Access PointObtaining Warranty Regulatory Compliance Information Radio Frequency Interference Requirements CanadaImportant Read Before Using This Product 3Com End User Software License Agreement