What is the optimal orientation of the AP (specifically R310) when wall mounting. Observing considerable variation in in download speed depending upon which way the front of the unit points, so wondering what the antenna spread pattern is.
The Orange (round) pattern is the R310 antenna coverage. The Black (right/front) pattern is Beamflex talking to an example (rectangle) client, showing it's focusing energy only in that client's direction. That is still however only 2 dimensions displayed, where there will be stronger top (out from the wall if wall mounted) and weaker bottom RF coverage too.
A flat wall mounted R310 will still provide a single room with strong coverage, and likely good coverage into adjacent rooms (maybe better to those beside that room, than to rooms behind the AP).
If testing only one AP, try switching channels manually and lock down your best performing 2.4g channel, with speeds taken from 3 or more locations of your client on each test.