Did you check the "192.168.1._ _ _" page (the page has a name but I've forgotten what it is...)? There might be a clue there. For instance: If you can bring up the page, I'd guess the problem lies with the power brick. Mine are at least 1.5A or better.
3 SoundBridges, 1 SoundBridge Radio - Phoenix, AZ
3 SoundBridges - Netarts, OR