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Router Setting Notes

Notes on settings for an Asus RT-AC3200 router

Good info here: http://routerguide.net http://www.rickygao.com/tuning-the-asus-wireless-router-to-best-performance/ http://www.smallnetbuilder.com/wireless/wireless-howto/32653-asus-rt-ac3200-smart-connect-the-missing-manual

Setting Default Notes
Adaptive QoS off probably no reason to turn this on unless I need to prioritize traffic
Adaptive QoS bandwidth monitor off might be interesting to turn on just to see what is going on
Enable Radio on self-explanatory
Enable wireless scheduler off Allows wireless to be turned on/off on a schedule
Set AP Isolated off makes it so devices on the network can't talk each other, can boost performance, leave this off
Roaming assistant off will cause clients to disconnect if they have a weak signal and connect to a stronger AP, might be worth trying out if there are multiple access points in different parts of the house or in leiu of Smart Connect
Enable IGMP Snooping off helps when there is lots of multicast traffic (such as Apple Airplay), but can cause performance issues with the router since the processor needs to work harder to look for this traffic
Multicast rate auto router bunches up messages and sends them as multicast to avoid collisions, can boost performance but seems like it would have a latency cost, have to play around with it to find the best setting
Preamble Type Long long has better error checking but can reduce performance, some older devices only support long, turning this to short may boost performance but may cause some older devices to not be able to connect and may cause more errors particularly for devices farther away, something to try
AMPDU RTS on helps deal with congestion problems, not much info available, could look into this one more to understand how it works
RTS Threshold presumably a tweak for AMPDU RTS
DTIM Interval 3 Goes hand-in-hand with beacon interval, buffers broadcast and multicast traffic for devices that are sleeping, 3 means DTIM will be sent on every 3 beacons, can optimize battery life by setting this higher, but router may have some trouble buffering data and could crash or cause issues
Beacon interval 100 helps devices discover APs so they can switch between them, increasing this can improve performance by saving bandwidth but makes it harder for devices to switch APs
Enable TX Bursting on only applies to B and G clients, on by default but may want to disable it because it can cause B and G clients to dominate the network during bursting sessions
Enable WMM APSD enabled there is no disadvantage, helps mobile devices save power
Enhanced Interference Management off not able to find a lot of info but consensus seems to be that it can boost speed, but cause connection drops, for some reason not available on the 5GHz-1 radio, might be something to try. Best description I could find: http://www.snbforums.com/threads/increase-wi-fi-performance.11343/#post-70675
Reducing USB 3.0 Interference (2.4 GHz only) on enabling will increase USB 3.0 speed but affect 2.4 GHz range
Optimize AMPDU aggregation off aggregates data to improve performance with the expense of latency, can improve throughput but be bad for e.g. gaming or VOIP due to latency
Turbo QAM (2.4 GHz only) on better performance, both router and client must support it, may want to look into this more to make sure my devices support it and/or make sure it doesn't hurt performance of devices that don't support it
Airtime Fairness on prevents slow devices from dominating the network but causes slow devices to be slower
Explicit beamforming (2.4 GHz only) on changes channel and direction of wireless signal, router and device must support, mostly supported on AC but also supported on N, though N devices can have compatibility issues
802.11ac beamforming (5 GHz only) on changes channel and direction of wireless signal, router and device must support, mostly supported on AC but also supported on N, though N devices can have compatibility issues (assumed this is the same as Explicit beamforming on 2.4G)
Universal beamforming on not a universal standard and different routers have different implementations, router estimates direction of the data sent and received, and boosts the downlink speed only, turning this off may help Explicit beamforming work better. But may want to be careful about reducing range since this works with AiRadar.
TX Power adjustment 100% didn't look into this one but seems self explanatory
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