3Com AP9152 Quick Configuration Manual page 52

The configuration from the last saved current settings will be installed from the configuration file (.cfg
file or .xml file) at the next startup. Any settings applied but not saved to the configuration file will be lost
when the Access Point next restarts.
Saving the configuration takes a period of time.
The system does not support the operation of saving configuration of two or more consecutive
users. If such a case occurs, the system prompts the latter users to try later.
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