I must say I find win 7 much more obscure in its new UI as to what it is doing than XP (or Linux). My problem is that the wireless connection icon on the status bar keep getting a yellow warning triangle - no internet access - and the same happens in the perplexing network and sharing center display. This is intermittent and driving me nuts.
The problem in on a new Acer Aspire 5250. It connects happily to my Draytek DSL/wireless router, but says there is no connection to the network. I have a Dell laptop running XP and this connects and perfectly - but the Acer keeps going up and down.
When down I can't ping anything, when up it is pinging. So what is this darn "Internet Access" thing in the Network and Sharing screen - what does it mean? It shows good connection to the wireless router, but not good connection to the internet.
FYI.... I have automatic DHCP and automatic DNS selected in the IPv4 configurations. The fact that the Dell unit runs perfectly says to me that the router is setup correctly (as it has been for years) - but there must be something odd in the Acer's configuration.
Oh, and if I make a wired connection to the Draytek router (same auto for DHCP and DNS) then this works solidly.