Edimax Technology BR-6428n - Manual (Page 142)

When you finished with the settings in this page, you can click ‘Apply’ button to save
changes you made in this page, or you can click ‘Cancel’ to discard changes. After you click
‘Apply’ button, you’ll see the following message:
Please click ‘Apply’ to save changes you made and restart the broadband router, this
requires about 30 seconds and the broadband router will stop responding (this is normal
and is not malfunction). You can reconnect to this broadband router and continue on other
settings later.