Thanks for the responses to my inquiry re how long systems stay up. My feeling for electronics is that equipment needs stability : temperature + humidity should not vary much & electrons need to flow thro' wires regularly. That suggests a machine will do better if left running.
I don't like the idea of phoning my ISP's help desk with an ill-defined problem : I can't be sure it will recur if they ask me to go thro' a few restart cycles ; the staff are probably trained to offer a few simple solutions ; they may simply offer to send me a new router or worse to send me a modem instead, which is harder to set up. The problem probably lies in their server : my router enjoys constant conditions & shows no other signs of wear ; if that's the case, ISP help staff may not even know what has changed. I'm planning to build a new machine in the next few weeks, so I also now plan to set it up to do suspend, hibernate etc ; I've grabbed a few dox which explain what's involved. Mick mentioned 'S3' = 'sleep' & 'S4' = 'hibernation' in this connection : what do they mean ? Do they correspond to saving to RAM/disk ? -- ========================,,============================================ SUPPORT ___________//___, Philip Webb ELECTRIC /] [] [] [] [] []| Cities Centre, University of Toronto TRANSIT `-O----------O---' purslowatchassdotutorontodotca

