Hi Dani, I was a bit busy with other things, hadn't had time to look into this issue until now.
> Firmware Version: *2.3.7.0 *Candidate 2 and my speed is 72.0 Mbps > instead of 150 Mbps before the update. Looking at these speeds and comparing them with the 11n supported speeds, it looks like your connection is using a single antenna / spatial stream (probably because your wifi network card only has one antenna) and you're using single-channel / HT20 / 20Mhz mode (see http://en.wikipedia.org/wiki/IEEE_802.11n-2009#Data_rates which shows 72.20 Mbps for MCS7 + short GI + 20Mhz channel). The 150Mbps you used to get, is the same mode, but with a 40Mhz channel, so I suspect your HT40 mode has stopped working. Note that all of this is assuming that the bitrates you mention are pretty exact, if you've seen 130Mbps and written 150Mbs, this conclusion is probably different. Some things that might help getting this working again: - In Settings -> Wireless, check if HT20/HT40 mode is set. - In the same page, check if the country is set correctly. Furthermore, it seems that HT40 mode can also be automatically disabled due to environmental conditions (e.g., other access points also using the spectrum). The reasoning here is that running an AP in 40Mhz mode uses around two-third of the availble 2.4Ghz spectrum, which can cause severe interference when there are a lot of other APs around. In my testing, I've seen 40Mhz mode work on one out of 5 associations, so I suspect I'm seeing the same "interference autodetect" at work. If this is indeed the case, then there's probably not much you can do, except getting a wifi network card that actually has two antennas (usually referred to as 2x2 or MIMO). If you have Linux on your wifi client, could you send over the output of the "iw dev wlan0 link" and "iw dev wlan0 scan dump" commands? If not, perhaps you have some wifi connection utility that shows detailed connection info (such as the MCS profile used and if the connection is using HT20 or HT40)? Also, on which firmware did you see the higher bitrate? Gr. Matthijs
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