In this particular case our first recommendation is for you to contact your computer manufacturer and check for the latest drivers first as their drivers are customized and made specifically for the type of system you have. Alternatively, you can also change the Power Option on Control Panel then >> Change Plan Settings >> Change Advanced Power Power settings >> Sleep >> Hibernate and set it to Never. If after trying the OEM drivers, you notice the issue still persists, you can try the following:
1. In Control Panel, Device Manager, Network Adapters, right click on the Intel® Centrino® Wireless-N 2230 and Uninstall it. Make sure you mark the option to "Delete the driver software for this device".
2. Reboot the PC or scan for hardware changes, check device manager and if an older driver is detected and installed, repeat the actions to uninstall and delete it as well. Repeat this process until the OS does not allow deleting the driver, or until the controller shows as Unknown Device.
3. Reboot or scan for hardware changes, then uninstall and delete any older driver versions as you did for the Wireless adapter.
4. Install the Intel® Wireless driver. During the first steps of PROSet/Wireless installation, make sure to customize the installation and install all the 3 driver components.