got a new macbook recently. got comcast internet. speeds at 20 mbps dl / 4 up. and every 20 minutes , websites will start to load but freeze. youtube just starts to load and freezes. video never plays. facebook pics wont load when clicked on. happens spiratically. had a tech come out to check lines. said splitter had errors. changed splitter and nothing changed. spent last 2 hrs online with them troubleshooting. another tech is scheduled to come out. can this be from the belkin wireless router. I exchanged router to see if it was. so this is the second brand new one. maybe my settings arent the best. friend has same setup at his house but no problems at all. any suggestions?