Touch cannot connect

Simple/stupid question time...I recently rebooted my Windows system for update purposes and suddenly my Squeezebox Touch cannot connect to the LMS. The PC is online, the LMS is running with no errors in the log, and I can connect to it from the web browser. But the Touch says it cannot connect. I've tried both wired and wireless connections from the Touch, have restarted the Touch, and have restarted the LMS. The Windows system has naturally been rebooted many times over the lifetime of the Touch and I've never had this problem. Any ideas what might be going on here or where to look to debug this?

Thanks!

- Jeff