Profilux II plus aquarium controller

[bullit67]

OK I give up I want to update my firmware but I can not connect to my Profilux I have tryed using the LAN connection with no luck I then went out and picked up a USB too RS232 (serial) adaptor and still no luck any one have any ideas I have been working on this all day today and this isant the first day I have wasted trying to get this to work. The profilux is still using the origanal firmware from when I got it last year ver.2.03

any help would be great

Doug