Hi I'm experiencing huge problems browsing the internet on my MacBookPro About 50% of the sites don't load Safari could not open the page http://URL of the page because the server is not responding. the other 50% are very slow. The same happens with Firefox too. (Safari and Firefox are latest version, Leopard 10.5.5 also experienced the problem before the last update) And this is where the (to me) strange part comes: - I have no problems viewing those sites on my iPhone using the same WiFI network as my MacBookPro does - I only experience problems on my MacBookPro using my home network (where the iPhone works great), at my parents home I have no problems viewing those sites on my MacBookPro So to me the problem has to be between my MacBookPro and my Network (Cable modem and Siemens Gigaset SE 551 WLAN) but as previously told the same Network works great together with the iPhone (hence it's not an ISP problem) further I didn't experience any problem until a few months ago and the MacBookPro is working great together with my parents Network. - Do I have to change the Siemens WLAN even if it works without any problem with my iPhone? - Do I need to reinstall OS X even if it works great at my parents home (and I'm not experiencing any other problem)? - Does anyone have any suggestion?