topic iis_authenticate = could not open -&gt; Server disk usage thru the roof in QlikView https://community.qlik.com/t5/QlikView/iis-authenticate-could-not-open-gt-Server-disk-usage-thru-the/m-p/437385#M1273357 <HTML><HEAD></HEAD><BODY><P>Hi All</P><P></P><P>I have a regular issue when users aren't able to access reports and receive the iis_authenticate error.</P><P></P><P>Looking at the Server at this time shows OK CPUs and RAM usage but the disk access is hitting 100% regularly?</P><P></P><P>Please could anyone advise why this might be and what I might do to remedy it?</P><P></P><P>Using QV 9.6 and Docs have about 5 million records.</P><P></P><P>Many thanks</P><P></P><P>Dominic</P></BODY></HTML> Mon, 26 Jan 2026 18:19:17 GMT 2026-01-26T18:19:17Z iis_authenticate = could not open -> Server disk usage thru the roof https://community.qlik.com/t5/QlikView/iis-authenticate-could-not-open-gt-Server-disk-usage-thru-the/m-p/437385#M1273357 <HTML><HEAD></HEAD><BODY><P>Hi All</P><P></P><P>I have a regular issue when users aren't able to access reports and receive the iis_authenticate error.</P><P></P><P>Looking at the Server at this time shows OK CPUs and RAM usage but the disk access is hitting 100% regularly?</P><P></P><P>Please could anyone advise why this might be and what I might do to remedy it?</P><P></P><P>Using QV 9.6 and Docs have about 5 million records.</P><P></P><P>Many thanks</P><P></P><P>Dominic</P></BODY></HTML> Mon, 26 Jan 2026 18:19:17 GMT https://community.qlik.com/t5/QlikView/iis-authenticate-could-not-open-gt-Server-disk-usage-thru-the/m-p/437385#M1273357 2026-01-26T18:19:17Z