One problem I've seen with BeagleBone is that WiFi dongles seem to get electrical interference problems when plugged directly into the BeagleBone...using a USB extension cord seems to fix that. AFAIK, this problem causes unreliability in all chipsets...so if you have it basically working - but unreliable - then adding an extension cable might help. After all, we're dealing with radio signals here - and antenna interference is a big deal. Most uses of WiFi dongles are OUTSIDE the metal case of a PC or laptop - where the metal helps to shield the antenna from R/F junk being emitted by the computer chips...maybe just putting some distance between the BeagleBone and the antenna helps.
-- Steve On Saturday, January 25, 2014 7:06:51 PM UTC-6, Harry May wrote: > > Thank you for all the information. > > This is my experience with reliable wifi. This took me 4 days and 4 > night(mares): > > I had all kinds of problems. Maybe the most important is that the > Micro-USB-Stick N150 (Netgear) does not work reliably. It was possible to > setup a WiFi connection > but it broke down all the time. > The much more stable hardware is the stick described by Carl Johnson in > his first post (the bigger size netgear stick using the ath9k_htc driver). > > I had no luck with Angstrom, the wifi stick was recognized and a dhcp > request startet, but succeeded only 1 of 10 times. > > So I ended up with Ubuntu saucy: > > http://rcn-ee.net/deb/rootfs/saucy/ubuntu-13.10-console-armhf-2014-01-24.tar.xz > and the instructions from this site: > http://elinux.org/BeagleBoardUbuntu (Debian or Ubuntu is the same > procedure) > > To setup the stick I modified /etc/network/interfaces: > auto wlan0 > iface wlan0 inet dhcp > wpa-ssid "MYSSID" > wpa-psk "MYPASSPHRASE" > > and the same for WLAN1 !!!! > I found out that changing from one stick to another may switch from wlan0 > to wlan1, even if you power off. > > And tested it according: > > http://embeddedprogrammer.blogspot.de/2013/01/beaglebone-using-usb-wifi-dongle-to.html > as Carl already suggested. > > Everything worked fine, so I removed the LAN cable and rebooted the bone. > > Now comes the important thing: WAIT at least 2 to 3 minutes. > It takes 2:30 minutes until the blue LED on the stick gets lit. > For any reason I don't know: at a later time it booted MUCH faster. > > I checked my DHCP router when the bone requested the IP. > Then it took some more time until I was able to SSH into the board via > wifi. > But after that time all went really nice. To test the wifi link I copied a > 100MB file repeatedly until 100 GB were copied. > All went well. > My WLAN router can do 54Mbit, but iwconfig showed 15Mbit only. I have no > idea why, but I am happy that all works well so 15M is good enough > for all my needs. > > This setup needs 650 MB on my SD card. > > What I learned in these 4 night and days: > * use ubuntu (not Angstrom) > * use saucy (not raring, I did not get it working with raring) > * never use these tiny N150 micro sticks. > > Harry > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
