I have a problem with Airport and wired connections on OSX Snow Leopard on a MacBook Pro. They are dropping after a few minutes of being in use.
There is no notification when this happens, and Chrome thinks it's a DNS lookup error. I've replaced the ethernet cable and the switch with no effect. Another Windows machine on the same switch is not affected by this.
This happening with Airport as well as with the wired connection leads me to believe there is a configuration issue with my MacBook Pro.
I read here from multiple users that deleting the SystemConfiguration folder and rebooting fixes this issue.
With this question I'm not asking if that will fix it (Though if it will, feel free to comment), I'm asking if removing the folder is safe to do without any worry of data loss.