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Forum Discussion
maindriver
Mar 05, 2026Apprentice
M4300 memory leak
Upgraded to 12.0.19.19 (from 12.0.19.4) yesterday morning. Now the ram usage increases until the switch crashes and reboots :/ Any advice here? Seen the same behaviour on M4300-28G-PoE+ a...
eblevins
Aug 10, 2026Guide
We are not using the AV features so supported suggested we disable the AV UI to mitigate the memory leak, it seems to work!
Their response:
Good day. I received an update from our higher support team regarding the memory leak issue.
They advised that if you are not using any of the AV features on the switch, you can mitigate the memory leak issue by disabling the AV UI through the command line(CLI). Since the AV functionality is not required in your environment, disabling the AV UI should prevent the issue from occurring while having no impact on your switch operations.
Below are the commands to disable the AV UI.
To Disable:
(M4300) >enable
(M4300) #application stop appmgr Application stopped.
(M4300) #configure
(M4300) (Config)#no application install appmgr
(M4300) (Config)#exit
(M4300) #save
To Enable: (M4300) >enable
(M4300) #configure
(M4300) (Config)#application install appmgr
(M4300) (Config)#exit
(M4300) #application start appmgr Application started.
(M4300) #save
- OperatorITSPAug 11, 2026Guide
Applied on our M4300s and it seems to work.
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