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<section id="troubleshooting">
<h1>Troubleshooting<a class="headerlink" href="#troubleshooting" title="Permalink to this heading"></a></h1>
<section id="common-issues">
<h2>Common Issues<a class="headerlink" href="#common-issues" title="Permalink to this heading"></a></h2>
<section id="libreqos-is-running-but-traffic-not-shaping">
<h3>LibreQoS Is Running, But Traffic Not Shaping<a class="headerlink" href="#libreqos-is-running-but-traffic-not-shaping" title="Permalink to this heading"></a></h3>
<p>In ispConfig.py, make sure the edge and core interfaces correspond to correctly to the edge and core. Try swapping the interfaces to see if shaping starts to work.</p>
<p>Make sure your services are running properly</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">lqos.service</span></code></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">lqos_node_manager</span></code></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">lqos_scheduler</span></code></p></li>
</ul>
<p>Node manager and scheduler are dependent on the <code class="docutils literal notranslate"><span class="pre">lqos.service</span></code> being in a healthy, running state.</p>
</section>
<section id="rtnetlink-answers-invalid-argument">
<h3>RTNETLINK answers: Invalid argument<a class="headerlink" href="#rtnetlink-answers-invalid-argument" title="Permalink to this heading"></a></h3>
<p>This tends to show up when the MQ qdisc cannot be added correctly to the NIC interface. This would suggest the NIC has insufficient RX/TX queues. Please make sure you are using the <a class="reference internal" href="../SystemRequirements/Networking.html"><span class="std std-doc">recommended NICs</span></a>.</p>
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