Netgear Nighthawk AC1900 R7000

Wireless Mode – AP
Wireless Network Mode – NG-Mixed
Wireless Channel – 12  (use 1, 6, 11 or the least crowded in your area, see note1)
Channel Width – 20 mhz
Multicast  to Unicast – disabled
TurboQAM – enabled
Explicit Beamforming – enabled
Implicit Beamforming – enabled
Airtime Fairness – disabled (this currently causes wireless dropouts over time)

(5 ghz)
Wireless Mode – AP
Wireless Network Mode – AC/N-Mixed (unless you have only AC clients or are still relying on wireless-A)
Wireless Channel – I use 44 (use least crowded. DD-wrt exposes the middle frequencies under 149 and above 48 as selectable [per DFS preemption], see note1)
Channel Width – 80 mhz
Extension Channel – Upper Lower (depends on the channel you use. lower lower for above 149, upper upper for below 48 )
Multicast to Unicast – disabled
Explicit Beamforming – enabled
Implicit Beamforming – enabled
Airtime Fairness – disabled (this currently causes wireless dropouts over time)

note1: I use Auto Wireless Channel and weekly reboot the router to determine the free channels

Wireless Security:
WPA2 Personal with AES only (unless you run a RADIUS server or something, in which case choose enterprise..)

Advanced Settings (both bands):
Basic Rate – All
Transmission Rate – Auto
CTS Protection Mode – Auto
Frame Burst – Disabled

Advanced Settings (5ghz):
Beacon Interval – 100 (set this a bit higher to save mobile clients some battery. Not too high so that wireless client’s don’t drop out from missed beacons)
DTIM interval – 1 (can be set higher for battery saving of mobile clients, but since it works in tandem with beacon interval, it can cause drop outs if set too high as well, use 1 if beacon interval is set to 100)
Fragmentation Threshold – 2346
RTS Threshold – 2347
Max Associated Clients – 128 (Personal preference. Say you want to restrict a certain number of IP’s for wired clients only. This setting would prevent wireless clients from taking all the IP addresses in the address range from the DHCP server)

AP Isolation – Disabled
TX Antenna – Auto
RX Antenna – auto
Preamble – Short (Long is for compatibility with older wireless devices. Most everything within 15 years works with short)
Shortslot Override – Short (another compatiblity setting that affects G-clients in relation to older B-clients. Reduces the time in between sending packets to clients after collisions)
TX Power– Manual 160 (Auto will change as needed for the client while obeying regulatory domain, see note2)
Bluetooth Coexistence Mode – Preempt (tells a bluetooth client which 2.4ghz channel the router is using to avoid transmitting on that frequency)
Wireless GUI access – enabled (else your wireless clients can’t configure the router)
Radio Time Restrictions – Disabled (personal preference)
WMM Support – enabled (Wireless-N and newer require this for higher transmission rates)
No-Acknowledgement – enabled (I use disable to avoid frequent throughput drops from a noisy wireless environment)