Sorry I don't remember when it first started (days or weeks). today it is working as usual -will let you know if I get the error message again(and this time I'll write it down instead of just hoping it was a quirk )

I don't use the same ISP at home and at work. At home I have my own wireless DSL(sbc) and at work it is a large centralized server with multiple stations(which I guess could use sbc as well-don't know how to tell).