L2J Server

i hope this is not a wrongplace to post this qestion..

i was searching for some explanation but couldnt really figure it out what to do or what to advise new players.
i have the latest dp and server, all progs updated, ....
pls advise/explain

Client (null) Protocol Revision:693 is too low. only 694 and 709 are supported. Closing connection.
Wrong Protocol Version 693

tnx a lot

ask at server forums

http://forum.l2jserver.com/

and tell your players they need updated client