So, I finally worked up the motivation to increase my wireless from 400 Mbps 1x1 to 1.3 Gbps 3x3. My Macbook Pro is my fastest client @ 1.053 Gbps it obviously supports 3x3 MiMo. Seems like my Switch is my slowest client @ 173 Mbps. Not sure why but I cannot get it to handshake any higher. Obviously does not support MiMo. Seems to be running just a little higher than 802.11n 40MHz speeds which max out at 150Mbps. I really don't know what to make of this. Is anyone negotiating faster than 173 Mbps on their Switch's WiFi? On a second note, the Switch seems to default to 1400 MTU. While that's fine, my router is set to 1500 MTU. So I increased my Switch to match my router @ 1500. If you are not sure what your router's MTU is here is a simple test. My router is 1500 so 1500 - 28 bytes for the header leaves me with a packet size of 1472. Open a command prompt and use this command: C:\>ping -f -l 1472 google.com Pinging google.com [126.96.36.199] with 1472 bytes of data: Reply from 188.8.131.52: bytes=1472 time=10ms TTL=61 Reply from 184.108.40.206: bytes=1472 time=9ms TTL=61 Reply from 220.127.116.11: bytes=1472 time=9ms TTL=61 Reply from 18.104.22.168: bytes=1472 time=9ms TTL=61 Ping statistics for 22.214.171.124: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 9ms, Maximum = 10ms, Average = 9ms As you can see it went through no problem. Now if I increase the packet size by 1 byte lets see what happens. C:\>ping -f -l 1473 google.com Pinging google.com [126.96.36.199] with 1473 bytes of data: Packet needs to be fragmented but DF set. Packet needs to be fragmented but DF set. Packet needs to be fragmented but DF set. Packet needs to be fragmented but DF set. Ping statistics for 188.8.131.52: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), So there you have it, I can comfortably set my Switch's MTU to 1500. This will maximize the packet size and increase efficiency. If you get fragmentation at 1472 that means your router is probably set to 1400. So try 1400 - 28 = 1372. If you don't get fragmentation at 1372 but you do at 1373 then your router is set to a 1400 MTU and you should leave the Switch at 1400 as well. Cheers!