After a couple of days of mucking about I was able to update 6.8.3 to 6.9. Pretty proud of myself :-)   I am now running 6.9 although without my 10GB card functioning. I am running on a bond with my 10GB in it together with two 1GB connections.   My network speeds are at 1GB level so I safely assume that my 10GB is not active, this is also logical because with -only- that 10GB in use as connection there was no connection at all.   For details on this issue see: