@Shadowsword2012 

Hi,

The "Powerline Rates" shown by tpPLC are based on calculations. The Powerline adapters do not actually send data back and forth between them to measure the speed. The large discrepancy between Powerline Rate and real-world data throughput has been the same for everyone.

Your statement "I do not have the option of running a long cable through the house" makes me believe the two TL-PA7017 are not just placed in adjacent rooms, but farther away. If so, then 100-140 Mbps seems reasonable for a pair of TL-PA7017. (based on my experience with a pair of very similar TL-PA7017P)

  @woozle 

Thank you for explaining. Does this mean that there isn't a solution to my problem?

  @Shadowsword2012 

If Ethernet is out of the question, then you are mainly left with Wi-Fi or Powerline, both of which lack speed when the distance to the client devices increases.

A third, but rather rarely used solution is called "MoCA". While this technology has the speed, it presents other limitations. It's rarely used because it only works for houses that have coax cable for TV installed to all the rooms. In addition, it might clash with the cable network operator.
If you are interested, then you can have a look at the following website, for example.         www.gocoax<dot>com/ma2500d         (replace <dot> with . )