<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
Hello,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
I'm seeing some message like these in our logs that look related to a SAML failure a user reported:</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
2023-07-25 12:21:42,432 - ERROR [net.shibboleth.idp.authn.ExternalAuthenticationException:91] - [E238ADD6795AF3ACD070BCC219B30FB4] - [40.94.31.24] -
<div class="ContentPasted0">net.shibboleth.idp.authn.ExternalAuthenticationException: No ExternalInterceptorContext found</div>
<div class="ContentPasted0"> at net.shibboleth.idp.authn.ExternalAuthentication.getExternalAuthenticationContext(ExternalAuthentication.java:253)</div>
<div class="ContentPasted0">2023-07-25 12:21:42,516 - ERROR [net.shibboleth.idp.authn.ExternalAuthenticationException:91] - [E238ADD6795AF3ACD070BCC219B30FB4] - [40.94.31.45] -</div>
<div class="ContentPasted0">net.shibboleth.idp.authn.ExternalAuthenticationException: No ExternalInterceptorContext found</div>
<div class="ContentPasted0"> at net.shibboleth.idp.authn.ExternalAuthentication.getExternalAuthenticationContext(ExternalAuthentication.java:253)</div>
<div class="ContentPasted0">2023-07-25 12:21:42,884 - ERROR [net.shibboleth.idp.authn.ExternalAuthenticationException:91] - [E238ADD6795AF3ACD070BCC219B30FB4] - [40.94.31.56] -</div>
net.shibboleth.idp.authn.ExternalAuthenticationException: No ExternalInterceptorContext found<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
so the user's IP address keeps changing. This then breaks SAML? We had a similar issue with our DHCP on our routers a while back where some users would get constantly changing IP addresses. Is the only solution to fix the DHCP service? Thanks!</div>
<div class="elementToProof">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div id="Signature">
<div>
<div></div>
<div id="divtagdefaultwrapper" style="font-size: 12pt; font-family: Calibri, Arial, Helvetica, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
<div style="font-family:Tahoma; font-size:13px">---
<div><span id="ms-rterangepaste-start"></span><span style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">Roberto Ullfig - rullfig@uic.edu</span><br style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">
<span style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">Systems Administrator</span><br style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">
<span style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">Enterprise Applications & Services | Technology Solutions</span><br style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">
<span style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">University of Illinois - Chicago</span>
<div><span id="ms-rterangepaste-end"></span></div>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>