Ack timeout I can explain (though I am sure the other gurus out there will do it better or put me back on track) but the others I cant. Perhaps someone else can elighten both of us.
So, ACK Timeout.
When a packet of data leaves a network device, whether it is wireless, fiber copper or whatever, there is a delay (however small) before it gets to the other end. When the packet gets to the other end, the device must reply to that packet saying OK I got that packet successfully. This process of replying to the sending device is called the acknowledgement or ACK.
So for example, a packet leaves my network card, travels over the CAT5 cable to my switch. When the packet is received successfully the switch replies to the network card and says OK i got the packet, now please send the next one. For more on thie check CSMA/CD in wikipedia.
Now why this setting in WiFi?
Well, wireless networks have to cope with a lot of environmental effects that are not there in a copper cable. and also they work over longer distances than the 100M of copper.
So if you have a wireless link between your laptop and the access point the distances are short enough for the packet to leave the AP get to the Laptop in a more or less normal ethernet time. So the Laptop replies in good time.
Now if you have a long point to point wireless link you may find that when a packet leaves one device it takes so long to get to the other end that the original sending device says to itself, I didnt get the aknowledgement so I had better retry sending the packet, and so on until no data passes.
So the ACK timeout feature you can adjust to allow the devices to wait a bit longer before resending the packet.
Ok, I hope that is A; accurate and B: simple enough to understand.
So can someone else outhere eplain the others?