Last Modified: Jan 07, 2026
Affected Product(s):
BIG-IP APM
Known Affected Versions:
11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2, 11.5.2 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5
Fixed In:
12.0.0, 11.6.0 HF6, 11.5.3
Opened: Mar 12, 2014 Severity: 3-Major Related Article:
K16609
RADIUS Authentication fails when the logon name contains non-ASCII characters. The problem is caused due to failure in conversion from UTF-8 to Windows-1252.
Users are not able to log in.
RADIUS authentication is configured and username/password contain non-ASCII characters.
There is no workaround for this issue.
Now it is possible to configure charset decoding behavior. You can decode usernames and passwords into CP-1252 (original behavior) or use UTF-8 charset (in this case, RADIUS Auth sends the username and password unmodified).