i need help with my modem

[justdoinghitz]

ok this guy i saw on craigslist told me he can put on internet from comcast for life for me for 120 bucks so i was ok . he connected the internet everything was fine then when i took out the modem from the livng room to my room and connected it again only google youtube and facebook works and others are non responsive so i called him up and he said he was going to take a look at it and he came and switched the modems and was working then the problem happened again and ever since then he never came back i keep calling him is there a way i can fix the problem without his help the modem is a motorola and isnt a surfboard look like old but it has a usb 2.0 but no reset or stand by button . my cusin did the same thing with the guy and he never had a problem but he had the surfboard modem

if anything can i use the surfboard modem ?


ALso it keeps asking me to show content on internet expolorer and the seurity certificates im guesing its the router cause i tried disabling on ie