Hey Greenbay,
Any idea what this is?
ftp://ftp2.dlink.com/SECURITY_ADVISEMENTS/COVR-3902/REVA/COVR-3902_REVA_ROUTER_FIRMWARE_v1.01B05_BETA.zip
shows a date of2/13/2019 on the FTP site and says a two file update sequence that doesn't say which to do first.
Lat time I did a two file update it bricked the extender.