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<div class="footer"><p>If you report this error to the Wikimedia System Administrators, please include the details below.</p><p class='text-muted'><code>Request from 2620:0:861:103:10:64:32:16 via cp1075.eqiad.wmnet, ATS/8.0.5<br>Error: 502, connect failed at 2019-09-10 12:10:44 GMT</code></p></div>
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It seems the common denominator is cp1075 as a number of other times it does not fail at all