420E incorrectly upgraded to 1.4.1819 and is no longer functioning correctly

Question

I don't know why the AP pulled a non GA version of the firmware, but I need the official 1.4.1748 firmware download so I can manually install. Anyone know where this download page would be? 
 Thanks in advance, 
 Gary

emmosophos · Answer

Hello Gary, 
 1.4.1819 is the lastest available Firmware and it&rsquo;s already GA since Jun 3rd, if you are having issues, with the Firmware please open a case and share the Case ID with us. Sophos Central release for Active Threat Response for AP6 Series access points 
 "On the Access Points page, the firmware version displayed is now 1.4.1819 for AP6 access points running the MR4 release version 1.4.1748. AP6 access points not running the MR4 release will continue to display the original firmware version." 
 
 Regards,