Web Development·12,106 discussions

Single Sign-On ISS 6.2 – One of two sites Intermittently won’t authenticate

Tags: Microsoft, Windows

Hello there,

Was hoping to get some help with an issue:

Currently in our testing environment, one IIS site (out of two) intermittently asks for credentials.

Our monitoring responds with 401 errors (believe due to login prompt) – shown below: (shortened)

GET / – 80 – Microsoft+Monitoring+Agent+7.1.10184.0 – 401 2 5 0

Both sites are configured for SSO, the other site works fine all the time, even while the affected site is having issues.

This issue is intermittent – occurred 2 days out of 7 this week.

We currently have a workaround of restarting only the affected site, which then allows users to access via SSO,

and we even have an automated task for this.

However I would still like to resolve the root issues itself. Event gaining a greater understanding of how a user SSO request can be transformed into needing credentials, and what common causes of this may be. Any help is greatly Appreciated.

Additional info:

-IIS version 6.2 used

-Windows server 2012 R2 used

Topic

Bad news.

In reply to Single Sign-On ISS 6.2 – One of two sites Intermittently won’t authenticate

I believe the OS and ISS are past mainstream support. Read https://docs.microsoft.com/en-us/lifecycle/products/windows-server-2012-r2

There is extended support but I hear those that used it paid 500 and up USD to talk to Microsoft about the problems.

I can’t guess why a company would not be moving forward.

Reply To: Single Sign-On ISS 6.2 – One of two sites Intermittently won’t authenticate

In reply to Single Sign-On ISS 6.2 – One of two sites Intermittently won’t authenticate

Try using failed request tracing to see details about the 401 error, but I suggest still opening a support ticket for this, one of our engineers will help find the root cause.

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