Wild media server (UPnP, DLNA, HTTP)

I have a problem when viewing movies (avs) via WMS on with my LG BD570. When I press the fast-forward it mostly sticks, continuing to fast-forward without reacting to any of the BD570 remote controls. Ocaasionally it will stop after a minute or so but I often have to shut off the player. The same with the fast reverse button.

Recently I have found that the controls for the BD player on my LG tv remote don't have this problem. So I use that remote, but it is a bit of a nuisance.

Any ideas?

PS. WMS version 1.08.2