Hi,
I have been facing this problem for a few days. I am connected via Ethernet cable, whenever I open a link or enter a web address my internet disconnects with a cross appearing very briefly on the Network icon and I get this Host could not be reached or there is no internet connection message in my web browser; right then my Internet connects and the website opens. This is not a problem when surfing the web but doing any work or opening any websites like bank etc. is impossible. Playing any online game results in long spells of "connecting to the server" messages while downloading files never has any problems.
I have cleared my cache, deleted all the cookies, changed my Ethernet cable, ran tests for Malware on my PC and updated my Network drivers to no avail.
I have another PC using the same Internet connection but it never has any of these problems.
Please Help