if youre getting the 'no new plugins' message, you also wont be able to do the online updates, (if using a clone, dont do this anyway lol)
but
to fix the plugin message, FTP into your receiver, and navigate to the /etc/opkg folder
inside, youll see a few files named things like mipsel feeds, dm800 feeds, etc, about 5 or 6 files in total
open them for editing
THIS IS FROM THE TOP OF MY HEAD, SO MAY NOT BE 100% ACCURATE, BUT IS CLOSE ENOUGH FOR YOU TO RECOGNISE WHEN YOU START
once a file is opened, itll say something like
src.gz
http://....openpli...more-stuff.blah.blah.
2.0more stuff
change the 2.0 so that it says 2.1
youll have to do this on about 4 or 5 out of the files, but NOT all of them, only the ones with a single line and an address in them
save the ones youve changed, and reboot the receiver
and updates will now work
i had the same issue with an original receiver over the last few days, big thanks to rossi2001 from dbuk for pointing me in the right direction to sort it out, the abouve will sort it for you m8