I have had my new Galaxy S for 4 days now and have been able to connect to Wifi in various locations but it will not connect to my wireless router at home. It gets as far as attempting to obtain the IP address, tries for a while and then says connection unsuccessful. I'm using a Lynksys Wireless-G Broadband router with WPA enabled. The pass key is not the issue as it is definately correct.
I also got a Galaxy S for my wife and we are having the same problem with both handsets.