Identify Hardware Failure on a Wireless Access Point (WAP)

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r={i:!1,av:function(n){var t="http.initiator";if(n&&(!n[t]||"spa_hard"===n[t]))o["ak.feo"]=void 0!==e.aFeoApplied?1:0,BOOMR.addVar(o)},rv:function(){var e=["ak.bpcip","ak.cport","ak.cr","ak.csrc","ak.gh","ak.ipv","ak.m","ak.n","ak.ol","ak.proto","ak.quicv","ak.tlsv","ak.0rtt","ak.0rtt.ed","ak.r","ak.acc","ak.t","ak.tf"];BOOMR.removeVar(e)}};BOOMR.plugins.AK={akVars:o,akDNSPreFetchDomain:a,init:function(){if(!r.i){var e=BOOMR.subscribe;e("before_beacon",r.av,null,null),e("onbeacon",r.rv,null,null),r.i=!0}return this},is_complete:function(){return!0}}}}()}(window);</script></head> <body> <div> <h2 >Objective</h2> <p >Identifying hardware failure on a Wireless Access Point (WAP) is useful in order for you to determine if your WAP needs to be replaced or just requires troubleshooting for a smooth network operation.</p> <p >The objective of this article is to show you the steps on identifying hardware failure on your Wireless Access Point.</p> </div> <div> <h3>Applicable Devices | Firmware聽Version</h3> <ul > <li>WAP121 | 1.0.6.5 (<a href="https://software.cisco.com/download/home/284142921">Download latest</a>)</li> <li>WAP131 | 1.0.2.8 (<a href="https://software.cisco.com/download/home/284142921">Download latest</a>)</li> <li>WAP150 | 1.0.1.7 (<a href="https://software.cisco.com/download/home/284142921">Download latest</a>)</li> <li>WAP321 | 1.0.6.5 (<a href="https://software.cisco.com/download/home/284142922">Download latest</a>)</li> <li>WAP351 | 1.0.2.8 (<a href="https://software.cisco.com/download/home/284142922">Download latest</a>)</li> <li>WAP361 | 1.0.1.7 (<a href="https://software.cisco.com/download/home/284142922">Download latest</a>)</li> <li>WAP371 | 1.3.0.3 (<a href="https://software.cisco.com/download/home/284142922">Download latest</a>)</li> <li>WAP551 | 1.2.1.3 (<a href="https://software.cisco.com/download/home/284142931">Download latest</a>)</li> <li>WAP561 | 1.2.1.3 (<a href="https://software.cisco.com/download/home/284142931">Download latest</a>)</li> <li>WAP571 | 1.0.0.17 (<a href="https://software.cisco.com/download/home/284142931">Download latest</a>)</li> <li>WAP571E | 1.0.0.17 (<a href="https://software.cisco.com/download/home/284142931">Download latest</a>)</li> </ul> </div> <h2 >Identify Hardware Failure</h2> <h3>Check the Physical Connection and Lights</h3> <p><b>Note:</b> Images may vary depending on the exact model of your WAP. The images used in this article are taken from the WAP321.</p> <p ><img alt="" src="/c/dam/en/us/support/docs/smb/wireless/cisco-small-business-100-series-wireless-access-points/images/rjs-03132017-hardwarefailure-1.png" style="width: 569px; height: 285px;"/></p> <h3>Step 1</h3> <p>If your WAP uses power through Power over Ethernet (PoE), make sure that the Ethernet cable that connects it from the Ethernet port to the PoE source is properly connected. If it uses AC power adapter, make sure the power adapter is connected properly to the power port and is plugged in to the power outlet.</p> <p ><img alt="" src="/c/dam/en/us/support/docs/smb/wireless/cisco-small-business-100-series-wireless-access-points/images/rjs-03132017-hardwarefailure-2.png" style="width: 501px; height: 160px;"/></p> <p ><b>Note:</b> Take note of the PoE type that your WAP requires to make sure it is receiving full power supply from your router or switch. Check your devices documentation whether it is capable of 802.3af or the High Power 802.3at PoE standard and verify if your switch or router can provide it to the WAP. To verify PoE power source on your access point, click <a title="The objective of this document is to show how to verify the PoE power source standard on your WAP571 or WAP571E access point" href="https://www.cisco.com/c/en/us/support/docs/smb/wireless/cisco-small-business-500-series-wireless-access-points/smb5482-verify-power-over-ethernet-poe-power-source-standard-on-the.pdf" target="_blank">here</a>.</p> <h3>Step 2</h3> <p>Check the Power light on your WAP and observe its normal state as follows:</p> <ul > <li>OFF (Green) - System OFF</li> <li>Solid (Green) - System is ON and Ready</li> <li>Blinking (Green) - Booting or System Self-Test or acquiring IP address</li> <li>Blinking (Amber) - Detecting hardware failure</li> </ul> <h3>Step 3</h3> <p>If the Power light is off, plug it to another power outlet or try using another power adapter of the same specification then check the Power light again. This would help identify if the problem is on the power adapter, the power outlet, or the device itself.</p> <h3>Step 4</h3> <p>Check the Ethernet light on your WAP and observe its normal state as follows:</p> <ul > <li>OFF (Green) - No link is detected.</li> <li>ON (Green) - Link is detected.</li> <li>Blinking (Green) - Transmitting or receiving data.</li> </ul> <h3>Step 5</h3> <p>If the Ethernet light is off, check if both ends of the Ethernet cable is properly secured on the Ethernet port of the computer and on the WAP. You can also try using another Ethernet cable and then check the light again. This would help you identify if the problem is on the physical connection, the Ethernet cable, or on the device itself.</p> <h3>Step 6</h3> <p>Check the Wireless light on your WAP and observe its normal state as follows:</p> <ul> <li>Blinking (Green) - Transmitting or receiving wireless data.</li> </ul> <h3>Step 7</h3> <p>If any of the indicator lights does not light up or behave normally even after doing the steps mentioned above, your WAP needs to be reset to factory default settings. To learn more, click <a title="This article aims to show you how to reboot and reset your WAP to factory default settings" href="https://www.cisco.com/c/en/us/support/docs/smb/wireless/cisco-small-business-100-series-wireless-access-points/smb5180-reboot-and-reset-the-wireless-access-point-to-factory-defaul.html" target="_blank">here</a>. This may also mean that the firmware on your WAP needs to be upgraded. For instructions, click <a title="This document explains how to upgrade the firmware on a WAP through an HTTP/HTTPS client or TFTP server" href="https://www.cisco.com/c/en/us/support/docs/smb/wireless/cisco-small-business-100-series-wireless-access-points/smb5193-upgrade-firmware-on-wireless-access-point.html" target="_blank">here</a>.</p> <p ><b>Note:</b> If all the steps above did not work, this could be an indication that your device already needs to be replaced.</p> <p >You should now have identified hardware failure on your wireless access point.</p> </body> </html> <cdc:do action="com.cisco.wem.framework.service.command.eotcontent.EOTResponsiveContent@2dc3fc78" returnTypedAs="eotResponsiveContainerVo" id="eotResponsiveContainerVo" /> <div class="row full visitedlinks" style="padding: 0px; margin:0px"> <div class="col full" >  <div id="eot-revision-history"> <h3>Revision History</h3> <div style="overflow-x: auto;"> <table border="1" id="erh-table"> <tbody> <tr> <th>Revision</th> <th>Publish Date</th> <th>Comments</th> </tr>  <tr class="published"> <td><div align="center">1.0</div></td> <td><div align="center">13-Dec-2018</div></td> <td><div align="left">Initial Release</div></td> </tr> </tbody> </table> </div> </div> </div> </div> </div> <script> if (window.cdc === undefined) { cdc = {}; } if (cdc.eot === undefined) { cdc.eot = {}; } cdc.eot.isEot = true; cdc.eot.isToc = false; jQuery(document).ready(function () { if (jQuery('.unpublished').length > 0) { let lastRel = "1.0"; if (jQuery('.published').length > 0) { lastRel = Number(jQuery('.published td')[0].innerText) + 1 + ".0"; } jQuery('.preview_revision').text(lastRel); } const linkItemsLen = jQuery("#eot-doc-wrapper link[rel='stylesheet']").length; function addNewTocStyleSheet() { const fileName = "/etc/designs/cdc/transformation/wemdcmt_responsive.css", linkElement = `<link rel="stylesheet" href="" type="text/css" />`; document.head.append(linkElement); } if (cdc.eot.isToc && !linkItemsLen) { addNewTocStyleSheet(); } else if (cdc.eot.isEot) { jQuery("#eot-doc-wrapper link[rel='stylesheet']").each(function () { const linkTag = jQuery(this), hrefVal = jQuery(linkTag).attr("href"); if (hrefVal != undefined && hrefVal.indexOf("support-responsive.css") == -1 && hrefVal.indexOf("_responsive.css") == -1) { let fileName = hrefVal.substr(hrefVal.lastIndexOf("/") + 1, hrefVal.length).split(".css")[0]; const filePath = "/etc/designs/cdc/transformation/"; if (fileName == "ccimr") { fileName = "techdocs_responsive"; } else if (fileName == "support-docs") { fileName = "support-responsive"; } else if (fileName == "framework") { fileName = "responsiveframework"; } else if (fileName == "dcmt") { fileName = "wemdcmt_responsive"; } else if (fileName == "techdocs_85_11_word") { fileName = "techdocs_85_11_word"; if (cdc.eot.isToc) { addNewTocStyleSheet(); } } else { fileName += "_responsive"; } jQuery(linkTag).attr("href", filePath + fileName + ".css"); } if (hrefVal.indexOf("support-responsive.css") > -1) { jQuery(linkTag).attr("href", "/etc/designs/cdc/transformation/support-responsive.css"); } }); jQuery("#eot-doc-wrapper > table").wrap("<div></div>"); jQuery("#eot-doc-wrapper table:not('.olh_note')").parent().css({ overflowX: "auto" }); } }); </script> </div> <div class="col narrow-v2"> <div class="rightRailComponent base-blowout"> <div class="eotPersonalization"> <section id="eotSupportCampaign"></section> </div>   <div class="hideComponent"> <div class="tac-image"> <script type="text/javascript"> document.getElementsByClassName('tac-image')[0].parentElement.style.display="none"; </script> </div> </div> <div class="hideComponent"> <div class="eot-authors"> <ul> </ul> </div> </div>  <div class="eot-feedback-container"> <div class="eot-feedback"> <h3>Was this Document Helpful?</h3> <span class="eot-feedback-btnwrap"> <button class="eot-feedback-btn eot-feedback-btn-yes" aria-label="Was this Document Helpful?? 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Identify Hardware Failure on a Wireless Access Point (WAP) - Cisco