Prior to starting an X server running OpenBox, I am able to
ping networks successfully. I have tested this by successfully pinging
188.8.131.52 (Google's DNS server).
Soon after launching any graphical application such as a web browser, I am unable to access the Internet.
ping responds with
connect: network unreachable when attempting to ping
184.108.40.206. I can still ping
127.0.0.1 successfully, but I get the same
network unreachable error if I attempt to ping my router.
I am using a Model B, overclocked to 800 MHz, running Arch Linux.
pacman -Qi raspberrypi-firmware shows that version
20130424-1 of the firmware is installed.
The system ran perfectly with both HDMI and composite output and did not drop the connection until recently, when I enabled HDMI hot plugging to fix video issues with a new display.
I read the tip on the ELinux wiki, but it appears that that issue was fixed last year. Has anyone experienced anything similar to this?