Raspberry Pi 3, WiFi is too slow

[JC_2016]

I updated and upgraded it to the latest version.
run the speedtest-cli:

Retrieving speedtest.net configuration...
Retrieving speedtest.net server list...
Hosted by GorillaServers (Los Angeles, CA) [12.06 km]: 328.56 ms
Testing download speed........................................
Download: 7.63 Mbit/s
Testing upload speed..................................................
Upload: 10.18 Mbit/s

added a line "post-up iwconfig wlan0 power off" at the bottom of /etc/network/interfaces file
Reboot the RaspPi3 box and run the test again.

Retrieving speedtest.net configuration...
Retrieving speedtest.net server list..
Hosted by Time Warner Cable (Los Angeles, CA) [12.06 km]: 318.474 ms
Testing download speed........................................
Download: 10.54 Mbit/s
Testing upload speed..................................................
Upload: 4.03 Mbit/s

Please help, anyway to increase the speed?

[drgeoff]

1. Do you realise that your speed test includes your internet connection to your ISP? Unless your wired internet connection speeds are higher than the numbers you are showing, those numbers are not measurements of the RPi3 Wi-Fi.

2. Wi-Fi speed depends on the distance, walls etc in the path. Wi-Fi is a shared medium so any other traffic on your W-Fi network will affect your measurement. Other nearby Wi-Fi networks using the same frequencies can also affect your measurement.

[mikerr]

Wifi is by its nature variable speed, due to any radio interference, other wifi, walls etc

iwconfig or cat /proc/net/wireless should tell you what speed the wifi has currently connected at.

[JC_2016]

Here is the result from iwconfig.

Bit Rate=5.5 Mb/s Tx-Power=31 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=54/70 Signal level=-56 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:356 Invalid misc:0 Missed beacon:0
lo no wireless extensions.
eth0 no wireless extensions.

[rpdom]

That's a weak signal, with a slow connection.

This is what I get on a Pi in my garage at the other end of my garden (at least two walls in the way and lots of other wifi in the area to interfere)
Bit Rate:65 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=100/100 Signal level=64/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

The format of the output is slightly different as that Pi is still running Wheezy (and has been for a few years). One day I might upgrade it, if I feel it is necessary.

[bensimmo]

Bit Rate=57.7 Mb/s Tx-Power=31 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=54/70 Signal level=-56 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:3 Invalid misc:0 Missed beacon:0

Mine, same room as the AP, probably about 4 Meters from it.
Current Jessie up to date.

Rpdom, This is the Pi3 internal by the way. Not an add-on wi-fi.

[fruitoftheloom]

Using a PiZero with an un-powered USB Hub and Ralink RT5372 Wireless Adapter about 10 feet from Router:

Mode:Managed Frequency:2.452 GHz Access Point: 98:E7:F5:5F:8F:90
Bit Rate=130 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-39 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:16 Missed beacon:0

[JC_2016]

no wall, the distance between raspberry box and WiFi router is about 16ft (less than 5m). My cell phone and laptop can connect to it with excellent signal and speed.