I have to constantly keep restarting my computer for it to connect to the internet, what can be done to correct this problem?

First try taking a look at your network status in the system preferences. Then try to troubleshoot the problem from that section. Click on the assist me button at the bottom.

I am having the same issues since I installed Mountain Lion. I have a good connection to the internet but I have to restart the computer in order for it to work. It will work for a day or two and then I'll have to do it again. It is also reflected in that I'll have email on my phone but it doesn't show up on the computer until after I go through a restart.

Hi, this has worked for a few...

Make a New Location, Using network locations in Mac OS X ...

http://support.apple.com/kb/HT2712

10.7…

System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.

10.5.x/10.6.x/10.7.x instructions...

System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.

The interface that connects to the Internet should be dragged to the top of the list.

Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.

For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...

208.67.222.222

208.67.220.220

Click OK.

Also, turn off IPv6:

System Preferences » Network » AirPort » TCP/IP tab » Configure IPv6

Or whatever Interface you use.