Fixes:
- Added support for 20/40 coexistence for 2.4GHz band. Default: Enabled
- Modified auto channel width function between 20MHz and 40Mhz to help improve the operation of 2.4GHz band.
- Fixed issue entering automatic reboot process after from restoring from a configuration file.
- Fixed issue entering automatic reboot process after a firmware upgrade.
- Fixed issue with WPA-Personal key rotation interval function.
- Added timeout functionality to prevent HTTP service from being blocked or hanging.
- Updated German language text items in user interface.
- Added support for passive FTP mode.
- Added support for Dynamic DDNS when static WAN IP is used.
- Fixed issue with when sending or receiving multicast traffic over wireless.
- Applied encryption to backed up configuration file.
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