Im having trouble getting my wifi, it connects to the router but isnt getting internet. My room mates and I can connect our iphones and other devices just fine, help would be appriciated

Question

First time on here and my knowledge with networking and such is very limited, my Mac Pro can connect to the router but when I try to open my browser it wont bring up any webpage.  The only way I can get internet is through an ethernet port, Im basically at a loss for what to do.

Answer 1

You will find the AirPort icon (looks like this ) on the OS X menu bar. Option (or right) click the icon, and you should be greeted with a drop-down menu. All of the parameters I mentioned should now appear after the name of your Wi-Fi network.
The meaning of each of the values are as follows:
PHY Mode = The radio mode that your Mac Pro is connecting with.
Channel = The radio channel the Mac Pro is connected to.
RSSI = Received Signal Strength Indication. It's an indication of the power level of the signal as preceived by the Mac Pro's internal Wi-Fi antenna. Typically the higher the RSSI number the stronger the signal. RSSI is measured in arbitrary units. Some manufacterers use a positive scale, others like Apple, use a negative (0 to -100) instead. For the AirPorts, the less negative the better.
Transmit Rate = Instantaneous maximum date transfer rate of the connection in Mbps (Megabits per second)
MCX Index = Modulation and Coding Scheme. The MCS value identifies a number of things, including the number of spatial streams used in the Wi-Fi connection between the Mac Pro and the AirPort router. A larger or smaller MCS value is meaningless. Instead, it defines the actual connection type. In turn, the type can play a significantly on the potential bandwidth performance.