I need to link up with WiFi using TP Link TL WDR7500 to an Andriod 4.4 TV box which is 150m away. However, a house blocks the WiFi midway. Is there a way to get this done?
At 150m a house in between is more like the tip of the iceberg. The problem simply is that at that distance all kind of interference happens like from cell phones, overhead power cables etc.
In a real world scenario 50-70m is usually the max you can get without violating signal strength regulation and your start page will probably takes 30-60 seconds to load. The only decent option to cover such distances are directional antennas (or even a laser bridge) and that's where the house gets in your way. Also both have to be cleared with local authorities for legality.
My personal suggestion would be two 75m Ethernet cables and a Hub/Switch in between. If you do want a fully wireless signal then range extenders it is – as Richa already posted.
You can try using wifi extender device which will extend the wifi range to several meters range for wifi signals. Here is list of links below which shows devices available in market for wifi range extender.