Or so my computer tells me:
Symptoms are: 1 - some websites just don't load at all
2 - some load partially
3 - others seem to load fine
4 - this pattern is consistent across our whole network - this computer plus one other connected to Netgear Wireless Modem (both hardwired by blue (forget the name) cable); laptop connected to wireless network; 2 iPads connected to wireless newtwork.
Diagnostics done so far: 1 - interenet connection is good (haha - if only this reflected real life. This speed is to the nearest big city server)

2 - computers rebooted
3 - modem disconnected and reconnected, including power.
4 - connection to websites checked via iPads through 3G (disconnected from wireless network) and they download OK
What I have done recently (different from daily routine): 1 - Installed and run Malwarebytes (before problem started)
2 - Installed and run Hitman Pro direct from link provided by Milo in other Firewall thread
3 - Tried to install and run ComboFix direct from link provided by Milo in other Firewall thread (after problem started)
4 - Installed Dragon Naturally Speaking 12. Have had some setup problems due to incompatability of analogue headphone/software with my 'onboard' sound card. Apparently will be resolved through using USB headset.
It seems to me that somehow there is a firewall setting in my Wireless Modem (NETGEAR, as supplied by my Internet Service Provider) that
'THEY' have changed. (Just because I'm paranoid doesn't mean that they aren't out to get me).
I've reached the end of my diagnostic & repair skills. Can somone help, please?
Milo, MikeB & others - you're patience with and help to us 'babes in the woods' is greatly appreciated.