Rather limited, and disconnection in case of inactivity on Raspberry Pi

Rather limited, and disconnection in case of inactivity on Raspberry Pi

Edimax EW-7811UN Nano USB Adapter 150Mbps Wireless (Personal Computers)

Customer Review

Good points:
- The Wi-Fi dongle is compatible with Windows and Raspberry Pi (model B under Raspbian, subject to the installation of the necessary driver)
Negative points:
- Connected directly to Raspberry Pi, the range is EXTREMELY limited: less than 5 m if there are obstacles (walls)! Maybe the range is better if it is connected to a powered USB hub for my part I tested connected directly via USB on a Raspberry Pi connected to a power supply of 1A.
- High flow problems streaming in Raspbian with AirPi / Shairport (porting Apple Airplay protocol to stream audio): Very quickly, the streaming stops or skips, because the flow and it seems insufficient to even more if I move away from the box (5m, it happens, but at 10m, it passes with great difficulty or not at all !!). Briefly, the announced rate of 150 Mbps sounds very visionary, moreover according to my measurements the best I can 50 Mbps but I rarely exceeds 12 Mbps with the Raspberry Pi Model B in Raspbian!
- If it is left switched on without using Raspberry Pi, network inactivity that the adapter appears to pause after qq minutes and then it is impossible to reconnect SSH or another. A solution I found is to add a command from the "crontab" to force periodically (every minute) access network at the gateway of my box to maintain the active adapter. Here's the line I added (making a "sudo crontab -e" to edit root's crontab):

* / 1 * * * * ping -c 1 192.168.0.254

With this, more problems, but the Wi-Fi range again is very limited, and the flow is much lower than the advertised 150 Mbps (12-50 Mbps max) !!!

Cable high quality for a very Basic prices Rank: 5.0 stars out of 5 "height =" 12 "border =" 0 "/>/5
December 23
Perfect January 1274 Rank: 5/5
March 12
Who could believe it! Rank: 4/5
August 10
qwerty Rank: 3/5
May 5

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