The problem usually comes down to not having your computer and tablet connected to the same network, not having the correct transmit address, or not having data selected to transmit.
The basic instructions are: First make sure you computer and your phone are connected to the same network. Then go to your phone settings> Wi-Fi> and click on the network you are connected to. Write down the router address you see listed there.  Go into the network setup you have for Ventus, make sure you have Expedition selected in the Instruments drop down, UDP selected for Connection, and then type the address you got for the router from your phone into the box. It is best to put in the first three sets of numbers from your phone and then in the last box put in 255. 255 is like a wildcard. That will do it. You can check to make sure you have data being transmitted by clicking on the Raw Data box where you should see a stream of numbers going by. If you don't see any then the problem is that Expedition is not connected to the same network as the phone, or that you haven't gone into Expedition settings and select the data you want to transmit. There you can click on the Exp Tx filter and select all the data channels you want to send to Ventus. 

Have you looked at the raw data feed into the Exp com port?

Nick wrote:

Have you looked at the raw data feed into the Exp com port?

No but the numbers boxes, etc populate fine on the PC so the data is getting in, just not out! 

Check the Exp Tx filter and make sure you have select all the data channels you want to send to Ventus.