I am also a newbie on DVR+ (one month and just love it
After reading (I did "Search This Thread" on Keywords and then read from when they started being delivered all the way to a year ago (scary stuff there) and then Channel Master surprised me with a three day early delivery), I knew to avoid "WiFi Dongles" for the DVR+.
It is much happier on a LAN (Ethernet) connection.
The "Wall Plug LAN" was mentioned above, I was almost ready to order that, but saw some with Home Designs similar to mine (one floor, long runs to Service Box and back to Router and DVR+ Location) had less than stellar results. Home designs involving several floors did much better. We don't even have Basements in Florida, they'ed just float up out of the ground. (You have to be careful not to drain your pool too much, it was embarrassing when the Sarasota County Engineer's Pool Popped up out of the ground.)
Instead of the "Wall Plug" Route, I just bought a WiFi adapter (to Ethernet LAN Cable):
I then added a 20' LAN Cable (that I could run 'out-of-sight') to place that adapter where I wanted it. I'm betting your WiFi issues to your bedroom are due to a vertical layout and very likely you will be much better off with the Power line Adapter:
Especially with more than one DVR+
In either case, it will keep the Laptops out of your bedroom and make your DVR+ much happier than a WiFi feed.
A Great aide to OTA enjoyment and DVR+ Programming is www.titantv.com
This has more complete programming information than Rovi Guide by far. I registered with them over a year ago (for customizing to suite my needs) and never had the first trace of SPAM resulting from it.
I can recommend ordering direct from Channel Master, no tax, quick standard shipping and super support (quick responses by them in minutes to hours after emails to them) and most importantly they understood my questions.
I'm sure you read all the great help I received on this site so I could enable update-blocks keeping me on my preferred (as delivered) 'secret' 115R Stable Firmware. (I'm only using one TB HD's and all their other 'enhancements' were detriments for me.)
This is the place to be for knowledge, CM's Manual (pdf) is nicely written, but there's So Much it doesn't even mention