I just installed a new AirPort Express today, and connected a MacBook Air and an HP EliteBook to it.
While browsing the web feels, to use an unscientific term, sluggish, I could verify serious latencies when pinging the computer from each other.
While sometimes the latency is as low as 2ms, most times it is around 300ms, spiking randomly even higher, and timing out from time to time.
This article suggest switching to
802.11n exclusively and setting the Multicast Rate to 2 Mbps.
While I tried changing the Radio Mode with no real success, I don't have an option to the the Multicast Rate on my device (Firmware 7.6.1).
When did this option disappear (or has it never been included in European models), and what other settings could help get the latency down?
Update: Using the trick from this question I got the response times down, and will now test how it helps with real usage:
sudo ping -i .2 192.168.1.1
Update 2: Even using the ping trick, I sometimes get timeouts from the the Windows machine and single digit packet losses. Sadly the performance is still very inconsistent, and I couldn't yet nail the cause down.