play to feature problem

I am using ultimate 32bit and the 'play to' feature doesnt work yet. It says it is 'contacting media server' and that is all it does. It finds my DLNA tv but even with all the share options ticked it doesnt go any further. It is using a wireless access point which may be stopping that sort of streaming but i can play movies from the laptop to the DLNA tv if i select the file via the tv. However i cant 'push' to the tv. Clear as mud? Any help appreciated

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