Forum Discussion
NimbostratusBIGIP ASM blocking Web App Kerberos NTLM login prompt
After building an ASM policy and going through the learning mode process, a Windows web application is having the login prompt blocked after changing the policy over to blocking mode. This behavior isn't producing a blocking page with a support ID.
Here is an example of the login prompt box:
If the policy is switched back to transparent mode, the login process is unaffected.
Thanks
dwhite12_255934I guess that my main question for this would be, is there an area within the ASM policy that can be modified to allow the authentication prompt box to still pop-up and not be blocked?
samstepCirrocumulus
Is your ASM policy blocking 401 response code? It should not by default: See https://support.f5.com/csp/article/K7922
If affected URL is a Login URL - have you configured it? See: