Why does the Wi-Fi icon in my system tray icons area go from white (as it is normally) to grey (completely grey, no asterisk or anything next to it, just greyed out) again and again? It's been happening for a few weeks, and hasn't happened before. My Wi-Fi connection is fine, but has been a bit slow at times. Could someone please tell me what it means; I can't find any answers on the internet or Microsoft's website.
Thanks :D