@Mohit_Chauhan There is good information here: Frequently Asked Questions for Cisco Meraki Access Point Antennas - Cisco Meraki That document addresses the question of using multiple antennas to increase range: Can I Aim Directional Antennas in Different Directions on the Same AP to Increase Coverage? No, this is not recommended. On a 4x4:4 access point, such as MR84/86, all antennas should be the same type and have the same orientation. If, for example, there is an MR86 with two ANT-25 patch antennas connected, do not attempt to aim each antenna in different directions in order to increase the coverage area. This will send two spatial streams in one direction and two spatial streams in another direction and will have unintended consequences.
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