yes , and modem changes /resets  along with taking the routor out of the equasion,
even changed phone plugs in the place.
called verizon 5 times .... and they always think its my hardware/software ... and it always takes 45 mins to explane to them ...
i even have a fresh formated pc on it . same AV program that ive been running for 3+ years also , the lag hits bolth pc's at the sametime . (mrs roo 's runescape game lags and it gets her player killed alot )
in AH i get the tcp udp switch within the 1st 1-5 mins  and then it gets warpy . and i never had this happen befor about a month ago .  my game was mostly rock solid  ... except for the skin dl  days . 
my only choice is to deal with verizon  or switch to comcast cable or slow dialup  ... verizon has the monopoly on dsl around here.