Hi guys I am new to the forums, (so don't know if this the right place or not) But Ive been having some strange internet issues on my 2013 macbook pro (13inch), running mountain lion. Basically Messages, mail and update wont work and in safari and chrome websites seem slower (like http://www.jpmorgan.com/pages/jpmorgan) and others simply wont load like (https://www.mywhu.whu.edu). However it is notable that Opera seems work fine ! Moreover I have tried pinging yahoo.com and seemed to work normally. Also my iPhone seems to work fine on the wifi too. So what can I do?