Hi,
Edwin, firstly thank oyu for your prompt response! I was trying to turn off the fireall completely - no luck.
By accident I tihnk we found the problem - DB file on the client is large - 500mb, whilst on the server installation is very small (few KBs) - so it seems that all our data are now being kept on the client side.
What I ma trying to do now is importing data one more time (as I have reverted to snapshot while ago), data will be imported to the client folder, and I will try to move the DB file to the server installation folder - I think that will do the job.
Will let you know in case of failure.
Kindest regards,
Pawel Jarosz