Stop the interference! - Network World

Microwave ovens are No. 1. They provide a pulse form of inference and typically hammer the middle of the Wi-Fi 2.4 GHz band. When they send their pulses, the majority of consumer ovens occupy 802.11 b/g channels 5, 6 and 7, but they may start their pulse on channels 1 or 11.

The second biggest interference comes from older continuous wave frequency modulated cordless phones.  These are not the more recent frequency hopping variety.  These continuous wave cordless phones typically occupy channels 0 through 2.

Fourth on the list are Direct Sequence Spread Spectrum (DSSS) and Orthogonal Frequency Division Multiplexing (OFDM) cordless phones.  These phones are in both 2.4 GHz and 5 GHz spectrums, and are a little nicer because both 802.11b/g and 802.11a access points can recognize the traffic and treat it somewhat like another Wi-Fi device.  The catch?  When these phones are handling a call, you can lose half of your bandwidth for the duration of the call.  If you have multiple handsets on a single base station, though, the second remote handset will permanently cut your Wi-Fi bandwidth in half.

My neighborhood Meraki - didn’t have the range I was hoping for.  My neighbor who is 500 feet away (according to Google Earth) can only see the signal, but cannot connect.  I will note I just mounted it atop a 10 foot mast outside our garage wall (brick) and now the signal in our house is almost nil.
I think the router is just not powerful enough to get through the brick. I am purchasing an antenna to boost this performance.
On order is a Hawking 15DBI Omni Directional Antenna.  I am hoping for much better reception.  I have now spend far more than I intended before establishing a customer base.