Ubuntu 14.04 LTS - Wireless Network Stops Working Periodically
I have just installed Ubuntu 14.04 LTS on a netbook that runs the original Intel Atom processor. It's running as a server, so I use it with the lid closed. I have configured Ubuntu to ignore the lid switch so that it won't suspend the operating system. So far, the system runs fine.
But I would go to bed and come back the next day to find that I can no longer access the server remotely. Looking at the screen on the laptop, I can see that the wireless network is still connected. "ifconfig" shows "wlan0" to be configured correctly. But the netbook cannot see anything else on the LAN.
Pinging the local interface (127.0.0.1) and "wlan0" IP works fine. But the server can't ping anything outside itself. I've placed the following line into "rc.local", but it did not solve the problem:
iwconfig wlan0 power off
Anyone else experience this problem on Ubuntu 14.04 LTS?
I found the work-around. It doesn't solve the problem, but keeps the server online.
Basically, I create a root cron script that checks network connection every five minutes. When the network connection fails, it restarts the network. Here is the basic code:
IsHostAlive.sh is a script that is downloadable on this web page: IsHostAlive.sh (GPL)
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