Bug ID 1083405: "Error connecting to named socket" from zrd

Last Modified: May 17, 2024

Affected Product(s):
BIG-IP GTM, TMOS(all modules)

Known Affected Versions:,, 14.1.5,,,,,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 15.1.9,, 15.1.10,,,,,, 16.1.3,,,,,, 16.1.4,,,, 17.0.0,,, 17.1.0,,,, 17.1.1,,,

Opened: Feb 24, 2022

Severity: 3-Major


After an mcpd restart, zrd may not be able to re-establish a connection to named. This shows up in the /var/log/gtm file or in the GUI with a message similar to the following: err zrd[27809]: 01150306:3: Error connecting to named socket 'Connection refused'. (or) err zrd[16198]: 01150306:3: Error connecting to named socket 'Connection timed out'.


Looking up or modifying zone records may fail.


After an mcpd restart


Restart zrd and named tmsh restart sys service zrd named

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips