I have a major issue. I have had to do a pretty big rebuild following a hack. I have sort of got most things working (ish) but if I try to get to network admin or indeed a pile of other stuff following a snapshot reinstall of the base domain of the MU installation, I get a 'too many redirects' error. I though I had solved it but seemingly not. I have check the usual places and I am now baffled. Happy to grant you access where required. Hope you can help!