TurkishTerror:
VHL, I am using a hard line connection to high speed
Well, there goes the possibility of an intermittent wireless connection due to a hardware setting.... Any chance you are using DSL? If so, it might be worth checking the DSL filters on each line, as bleed-over can cause these types of issues in such a case.
If this is a windows based pc and you have the connection notification icon in the taskbar, you can right-click it and choose the 'status' option to see how long the current connection has been active. If it says it has been active for 8 hours, for instance, and you have had troubles within that window, then it may not be a connection issue after all.