Hi. From what I can gather, (from chatting to others about this who also use a modem/router for wireless) is this happens quite often and there is very little one can do about it. It sometimes happens with mine. I have a Belkin, wireless modem/router and often I have to pull the power lead out of the back and put it back in again then wait for it to start up and it is ok then. Same ting happens to some of the lads at work with a similar set-up. I don't think there is much you can do really!