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    <title>topic CAPWAP-3-DECODE_ERR in Wireless</title>
    <link>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4426612#M507</link>
    <description>&lt;P&gt;Hey guys!&lt;/P&gt;&lt;P&gt;I would like to know how to solve this problem:&lt;STRONG&gt;&amp;nbsp;*%CAPWAP-3-DECODE_ERR: 1 wcm: Error decoding Data transfer request from AP.&lt;/STRONG&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Thanks!&lt;/P&gt;</description>
    <pubDate>Thu, 01 Jul 2021 09:39:30 GMT</pubDate>
    <dc:creator>Mmonteiro</dc:creator>
    <dc:date>2021-07-01T09:39:30Z</dc:date>
    <item>
      <title>CAPWAP-3-DECODE_ERR</title>
      <link>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4426612#M507</link>
      <description>&lt;P&gt;Hey guys!&lt;/P&gt;&lt;P&gt;I would like to know how to solve this problem:&lt;STRONG&gt;&amp;nbsp;*%CAPWAP-3-DECODE_ERR: 1 wcm: Error decoding Data transfer request from AP.&lt;/STRONG&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Thanks!&lt;/P&gt;</description>
      <pubDate>Thu, 01 Jul 2021 09:39:30 GMT</pubDate>
      <guid>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4426612#M507</guid>
      <dc:creator>Mmonteiro</dc:creator>
      <dc:date>2021-07-01T09:39:30Z</dc:date>
    </item>
    <item>
      <title>Re: CAPWAP-3-DECODE_ERR</title>
      <link>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4426706#M508</link>
      <description>&lt;P&gt;Hello&amp;nbsp;&lt;a href="https://community.cisco.com/t5/user/viewprofilepage/user-id/895442"&gt;@Mmonteiro&lt;/a&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I'll type in Portuguese because os language of this community, ok?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Você tem o modelo e a versão da WLC e do Access Point que está tentando registrar?&lt;/P&gt;&lt;P&gt;Precisamos desta informação para entender se está usando um Access Point compatível para registro porque a mensagem é um indicativo de que está usando um modelo incompatível com sua WLC.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Thu, 01 Jul 2021 13:27:46 GMT</pubDate>
      <guid>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4426706#M508</guid>
      <dc:creator>Jonas Fraga</dc:creator>
      <dc:date>2021-07-01T13:27:46Z</dc:date>
    </item>
    <item>
      <title>Re: CAPWAP-3-DECODE_ERR</title>
      <link>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4427161#M509</link>
      <description>&lt;P&gt;Olá&amp;nbsp;&lt;a href="https://community.cisco.com/t5/user/viewprofilepage/user-id/249005"&gt;@Jonas Fraga&lt;/a&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Obrigado pelo feedback.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Seguem os dados solicitados:&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;WLC&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;Software Version:&amp;nbsp;03.07.05E RELEASE SOFTWARE (fc1)&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;System Model:&amp;nbsp;AIR-CT5760&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;APs:&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;Primary Image:&amp;nbsp;10.3.150.0&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;Backup Image: 8.5.140.0&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;AP Model:1852I&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;Nota: Tem mais de 50 APs e todos com a mesma versão, mas os logs estão basicamente associados a três APs.&lt;/SPAN&gt;&lt;/P&gt;</description>
      <pubDate>Fri, 02 Jul 2021 09:36:22 GMT</pubDate>
      <guid>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4427161#M509</guid>
      <dc:creator>Mmonteiro</dc:creator>
      <dc:date>2021-07-02T09:36:22Z</dc:date>
    </item>
    <item>
      <title>Re: CAPWAP-3-DECODE_ERR</title>
      <link>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4427397#M510</link>
      <description>&lt;P&gt;Obrigado pelo retorno&amp;nbsp;&lt;a href="https://community.cisco.com/t5/user/viewprofilepage/user-id/895442"&gt;@Mmonteiro&lt;/a&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;A mensagem de erro informada basicamente significa que algumas mensagens enviadas pelo Access Point não são interpretadas pela WLC e isto está impedindo o seu registro (&lt;A href="https://www.cisco.com/c/en/us/td/docs/wireless/controller/7-3/message/guide/sysmsg/ccx_cdp_cids_msgs5.html" target="_blank" rel="noopener"&gt;https://www.cisco.com/c/en/us/td/docs/wireless/controller/7-3/message/guide/sysmsg/ccx_cdp_cids_msgs5.html&lt;/A&gt;).&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Captura de Tela 2021-07-02 às 14.49.53.png" style="width: 645px;"&gt;&lt;img src="https://community.cisco.com/t5/image/serverpage/image-id/124263i7DDA1E1AEC4BBAA1/image-dimensions/645x267?v=v2" width="645" height="267" role="button" title="Captura de Tela 2021-07-02 às 14.49.53.png" alt="Captura de Tela 2021-07-02 às 14.49.53.png" /&gt;&lt;/span&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Entendendo a partir da documentação que pode ocorrer por qualquer motivo o ponto que gostaria de direcionar é para a versão de software da sua WLC. Ela está em uma versão mais antiga e também diferente da recomendada pelo fabricante (3.6.10E &lt;A target="_blank"&gt;MD).&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Download:&amp;nbsp;&lt;A href="https://software.cisco.com/download/home/284397235/type/282046477/release/3.6.10E" target="_blank" rel="noopener"&gt;https://software.cisco.com/download/home/284397235/type/282046477/release/3.6.10E&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;A versão recomendada foi lançada em Maio de 2019 enquanto que a sua atual versão vem de Fevereiro de 2017 e muitos bugs foram corrigidos neste meio tempo. Não encontrei um bug que apontasse especificamente o seu problema, mas é certamente uma recomendação o upgrade de software para tentar solucionar o problema e será um requisito do TAC caso precise acioná-lo para investigar seu caso.&lt;/P&gt;&lt;P&gt;Com base nisto, recomendo o upgrade da WLC para avaliar se o problema é resolvido e a acionar o TAC caso persista após a atualização de versão.&lt;/P&gt;</description>
      <pubDate>Fri, 02 Jul 2021 17:57:31 GMT</pubDate>
      <guid>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4427397#M510</guid>
      <dc:creator>Jonas Fraga</dc:creator>
      <dc:date>2021-07-02T17:57:31Z</dc:date>
    </item>
    <item>
      <title>Re: CAPWAP-3-DECODE_ERR</title>
      <link>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4427950#M511</link>
      <description>&lt;P&gt;&lt;SPAN&gt;Olá&amp;nbsp;&lt;/SPAN&gt;&lt;A href="https://community.cisco.com/t5/user/viewprofilepage/user-id/249005" target="_blank"&gt;@Jonas Fraga&lt;/A&gt;&lt;SPAN&gt;&amp;nbsp;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;Farei questão de proceder conforme a sua sugestão. Muito obrigado pelo feedback!&lt;/SPAN&gt;&lt;/P&gt;</description>
      <pubDate>Mon, 05 Jul 2021 08:23:46 GMT</pubDate>
      <guid>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4427950#M511</guid>
      <dc:creator>Mmonteiro</dc:creator>
      <dc:date>2021-07-05T08:23:46Z</dc:date>
    </item>
    <item>
      <title>Re: CAPWAP-3-DECODE_ERR</title>
      <link>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4428241#M513</link>
      <description>&lt;P&gt;Obrigado pelo retorno&amp;nbsp;&lt;a href="https://community.cisco.com/t5/user/viewprofilepage/user-id/895442"&gt;@Mmonteiro&lt;/a&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Caso encontre isto como uma solução peço para marcar como solucionado nesta postagem &lt;LI-EMOJI id="lia_slightly-smiling-face" title=":rosto_ligeiramente_sorridente:"&gt;&lt;/LI-EMOJI&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Mon, 05 Jul 2021 20:08:10 GMT</pubDate>
      <guid>https://community.cisco.com/t5/wireless/capwap-3-decode-err/m-p/4428241#M513</guid>
      <dc:creator>Jonas Fraga</dc:creator>
      <dc:date>2021-07-05T20:08:10Z</dc:date>
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