iPhone 4S wifi not loading

so the wifi at my house works on my phone flawlessly, though im at a friends house right now and when I connect to his wifi, it says im connected but not loads up. if i try to go to a website on safari it says "safari stopped responding because of the server" or something along the lines of that

ive tried reseting network settings...and noo luck

any suggestions

thanks in advance!

 

anyone?