Bug ID 998473: NTLM Authentication fails with 'RPC Fault received' error and return code: 0xc0000001 (STATUS_UNSUCCESSFUL)

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP APM(all modules)

Known Affected Versions:
15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4

Fixed In:
16.1.0, 15.1.4.1

Opened: Mar 02, 2021

Severity: 3-Major

Symptoms

NTLM Authentication fails with 'RPC Fault received' error and return code: 0xc0000001 (STATUS_UNSUCCESSFUL)

Impact

NTLM authentication for Active Directory users which are subscribed to more than hundred groups will fail.

Conditions

1. NTLM front-end authentication is enabled. 2. Active Directory users are subscribed to more than one hundred groups.

Workaround

None

Fix Information

A fix has been provided to the sequence number handling which is used to calculate the RPC checksum as part of ID 949477.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips