Wifi Locking in but nothing happening

Question

First off I love the Itouch! Second I am just a little frustrated because I cannot seem to get the wifi to work in my itouch away from my home. I lock into a wifi hotspot yet I cannot get my weather apps or stock apps updated. I get full bars and I have tried renewing my lease and still I get nothing. I am however able to use my Itouch at my home with my Linksys wireless router without any issues.
I take the Long Island Railroad and would like to use my Itouch on the train. Also while waiting for the train I would like to use this in Penn Station. The RR station does have free wireless hotspots and there two Starbucks so I am not at a loss of having wifi hotspots.
Any help would be great. Thanks again
I know there are many posts concerning matters of the wifi system on my Itouch but nothing seems to discuss this problem.

Answer 1

I have a Linksys router at home and found the following solution. This also seems to be effective on the one public Wifi site that I've tried:
Go to settings and the choose Wi-Fi. This should display a list of available networks where you are and should indicate that you're logged in to one already (if not, you'll need to choose a network).
Push the blue circle with a ">" symbol inside it that appears beside your network name. This brings up the "IP Address" page. On either the DHCP or STATIC tabs, check to see whether more than one DNS address is listed. In my case, my home router listed three different addresses, all separated by commas. I deleted the first two and kept the last address and everything seemed to work.
On the public site that I tried, only two addresses came up. I deleted the first one and kept the last one again. I haven't tried keeping the first one so I'm not sure whether the solution is specific to the last DNS entry.
But try this and let me know whether it solves your problem. I'm still running firmware 1.1.3.