Indicator won't show wireless connected after coming back from suspend

After opening the computer, and it loads back up from suspend, the wireless connection cannot not be reestablished. The computer does ask for a password and allows logging. However, the network indicator does not show that the connection is established, rather, the usual wireless indicator is replaced with something like this: <->.
Additionally, this does not happen every single time. It happens once in about 10 resumes from suspend.
One more detail worth mentioning is that when this happens, the operating system cannot be shutdown. I can hit the power button on the top, go to shutdown, and nothing happens. The only way to get this back to work is to power the machine off by means of the power button and booting the OS again.
To try to solve this, I tried toggling the network to off and then back to on, as a form of resetting, to no avail.