I am attempting to control a building approximately 70 yards from my EAP225 single access point unit.  I want to control 2 switches, two plugs, and one wyze camera out there and one camera 80 degrees from them with no obstructions.  I have tried a tp CPE210, an AV600 power link, and  Edimax extenders.  This EAP225 gave me some hope,  Unfortunally the signal is weak and unstable.  To add to my struggles I changed my internet carrier from Spectrum to T-Mobile to increase my speed,  There may be some network conflicts that need to be resolved, not sure.  I have read conflicting information on the placement of this unit, High or low from the ground.  I am open to any suggestions, PLEASE.