i do get lags occasionally, but only on overcrowded or high ping servers.
apart from that, i get large blocks of this error, mostly at about noon or midnight and it's more like a short disconnect. i suspect my provider rather than my WLAN router, Windows Firewall, Avast antivirus (that automatically updates at random times), outdated unupdatable laptop graphics driver or buggy wireless USB mouse.
and i think one of my neighbors or a wardriver is trying to hack my wireless network.
XD