Sure!
First of all, most of these tweaks you’re playing with have everything to do with the coverage size required and degree of congestion in your network. Turning them on or off won’t kill anyone, but they may variously affect how accurate your router is at recognizing and excluding what it perceives as erroneous data blocks—improving transmission and connection stability at the expense of speed. The whole AMPDU, WMM and beamforming sections are error-checking services pertinent to three respective aspects of your network configuration: number of devices, type of data involved, and distance from the router, in that order.
“AMPDU RTS” and “Optimize AMPDU Aggregation” go together—“RTS” stands for “Request to Send”, and there are adjustable thresholds that appear below it when it is turned on (and please don’t bother going there). “Optimize Aggregation” subsequently activates the overhead scanning and error checking features of AMPDU itself.
Think of the former as turning on the block error checking function and activation thresholds required for crowded bandwidth situations, and the latter as actually instructing the router whether to acknowledge or ignore the extra blocks found. So having one on without the other really accomplishes nothing—either turn them both off or both on, depending on the environmental factors I mentioned previously.
“WMM No Acknowledgement” (WMM stands for Wireless Multimedia Extensions) tells the router to ignore another means of error checking specific to handling data from media streaming services, such as internet television and VoIP signals. Since you’ve already enabled WMM itself, turning on “No Acknowledgement” simply tells the router to proceed with transmitting the signal without waiting for the error data confirmation to return. If you experience problems with this, then it means you are generating enough multimedia transmitter crosstalk to warrant the extra layer of error checking.
Finally, enabling Universal Beamforming benefits folks with medium to large sized houses. It enables the router to estimate channel availability and subsequently steer the signal to weaker areas a certain distance beyond the router antennae location. I leave it on—if you have plenty of coverage for your network size, try keeping it off.
Hope that explains what all these layers of error-reduction technology do. And to be honest, I think the best approach is to start with a guesstimate based on all the network factors above you’re asking your mesh network to handle—and then start flicking the switches that complement each other logically until you get to your sweet spot. And then when a friend buys you another smart device, be prepared to adjust again! A mesh network is a big oceanic ecosystem, and little ripple on one side can cause tsunamis when they reach the other...
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