Smoothwall Express 3 refusing connections
Been running SWE3 fine for the past 2 years. Suddenly this morning get a call to say students (who go via this proxy) have no internet; staff internet which doesn't go via SWE3 is fine.
Login to admin interface, everything seems ok. As we use dansguardian mod I restarted this - still nothing. Reboot the SWE3 box - nothing. Do a shutdown for a few mins and boot back up - nothing. Worth noting it pings fine and can login to admin interface fine, but when you try to browse to a page is seems to be refusing and/or cancelling the requests. Config hasn't changed.
What is more bizarre is that I managed to get a connection to bbc.co.uk but one where only the text is showing (like it has started downloading the content, stopped then just displayed what it got - see attachment). This is up to date. Normally though it just says connection refused.
Help or advice much appreciated!