This looks even better than powerline. I am wondering if it would be okay to use a splitter cause I have one coax in my room which is in use for the Tv. I would use a 2nd splitter as well cause theres only 1 coax by in the room with the router and cable modem which is of course connected to the modem. Would a splitter degrade signal by much?
The actiontec adapter has a passthrough connection for cable tv, no splitter is required, unless you're using a STB. If you're using a STB, I'm not sure. Some reports seem to indicate it still works, but other reports indicate interactive services (e.g., on-demand) would no longer work. I'm using a splitter to feed my: 1) STB and 2) MoCA adapter/XBOX. I haven't noticed any signal problems either with the television or streaming HD netflix to the XBOX.
Check whether your cable modem (i.e., cable provider) suports MoCA. If so, no second splitter/adapter is necessary. I'm not sure whether a second splitter at your cable modem would cause a problem. I would log onto the modem and see what the signal levels are like before and after adding splitter.
I'm using FIOS and it works great. I can plug the adapter into any of my coax outlets, which technically places the adapter upstream of my firewall/router. Yet the device connected to the adapter automatically gets recognized by the firewall/router as a downstream (firewalled) device connected to the same subnet as my home network. Pretty neat and painless.
I think netgear also makes a good model with more bells and whistles. Actiontec however is used by the providers, so it probably is a better product based upon the feedback from commercial use.
All the suggestions in the thread seem interesting. Hey, it is just fun playing with this stuff regardless whether it is the "optimum" solution.