Wd Live and Plex Server

I use plex server all round the house for different devices , i recently bought a wd tv live for the kids room , and the trouble im having is when the any video file is played via wd live using the plex server it cuts out every time after 30 mins and reports to me that the content source has changed (which it hasnt ) and it will let be back in straight away , this is very annoying can any help , because i have tried everything

Check if you have the latesft firmware installed, you can also try setting a static IP.

well have the latest firmware , not sure how to set static ip