Said It Here

Active Directory and LDAP web login fails with no logs

Web UI logins configured with Active Directory, LDAP, or Entra often fail or immediately drop the user's session. Fixing the configuration is incredibly difficult because vendor support blames the user's environment, documentation is poor, and diagnostic logs are either empty or take up to two days to appear. This leaves administrators guessing and relying on temporary workarounds like clearing browser cookies.

Overview
People affected3 accounts across 1 forum
Workarounds found5 items attempted
Community agreement5 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Running a packet capture on the port to see if the LDAP handshake completes.
    Did this help you?
  2. 2
    Contacting vendor support and waiting for their assistance.
    Did this help you?
  3. 3
    Deleting browser cookies or setting the browser to delete cookies automatically on close.
    Did this help you?
  4. 4
    Comparing the third-party app's SSO configuration against a known working production setup.
    Did this help you?
  5. 5
    Going through setup documents again from scratch to confirm all configurations.
    Did this help you?
Tried another approach not listed above?+ Share your workaround ↑

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/sysadmin3 people · October 2026 – November 2026

“I am in the process of setting up our Infoblox unit w/ AD Auth and having some trouble. The logs give very little information and the documentation sucks.”source ↗

“I have both LDAP and LDAPSs configured but won't let me log in.”source ↗

Busy-Examination1148 · r/sysadmin · 1 upvotes

“I can't auth in their web ui. That's where my problem lies.”source ↗

Busy-Examination1148 · r/sysadmin · 1 upvotes

“When trying to access MailStore via Web and loggin in via your Microsoft User, it drops you out as soon as youre trying to access your mails”source ↗

“If youre deleting Cookies it works 50/50 of the Time and after a couple Days we are back at the same Issue”source ↗

FkGamingFX · r/sysadmin · 1 upvotes

“contacted their support and it feels like im talking to a wall, only thing they told me is the problem must be on my side”source ↗

FkGamingFX · r/sysadmin · 1 upvotes

“I wouldn't put too much stock in the lack of Entra logs. I've had it take almost 2 whole days for logs to show up before. Really makes troubleshooting frustrating.”source ↗

philosophicore · r/sysadmin · 1 upvotes

Where this came up

People with this problem also raised