[SOLVED] No add-ons work, plus other issues

[travhoog]

I just set up xbian on my RasPi this weekend and love it. I can connect via SMB to my main HTPC and watch my existing video library without any issues. However, I'm having a number of other issues. These are probably newb issues, but I'm going crazy.

1. I can download Add-Ons, and they initially run. I can, for instance, see a list of feeds in the TED add-on. Also, I can install and run the NPR audio add-on, and see a list of all available stations. But if the try to connect to a stream or anything beyond my local network, I get "Script failed!" messages.

2. I cannot set up weather. When I enter my city (a very large town) it says "No results found"

3. I cannot run updates. In xbian-config, in Config > Packages, I get "Failed to retrieve download mirrors, therefore a local (possibly outdated) list will be used."

It seems like all of these problems might be interrelated. Is there something wrong with my network settings that impede communications? If so, I don't understand how I can connect to my file server or download add-ons. I'm stumped.