On my Dreambox (dm800se) I use several NFS mounts exported by my home server.
When this NFS server is not available and you try to access the share via the “Media Player” your Dreambox locks up. It keeps waiting for the NFS share to come up and provide data and since this is not going to happen the Dreambox hangs forever.
I resolved this by editing the automounts.xml file (which is in /etc/enigma2) and add “soft” to all your NFS mounts.
<nfs> <mount> <active>True</active> <hdd_replacement>False</hdd_replacement> <ip>172.20.0.123</ip> <sharename>share</sharename> <sharedir>share</sharedir> <options>ro,nolock,tcp,soft</options> </mount> </nfs>