well what i advise is if u experience bad net or anything related to net problems if u are either using a router reset it and change its settings mac filter or security of what ever kind u are using on it. the same goes for the modem. im using Comcast and its ****. :O
always get lag spikes and get a disconnect error randomly and stuff but its being shared with another pc using majickjack "<--------- the problem im having" and i block that pc and others connecting with a mac filter when i play unless it needs to be plugged in
so plain and simple reset the router or modem u are using and edit the settings to what ever u had it to if u didn't change any settings then just reset and not worry.
and no mac filter has nothing to do with apple or mac's of anykind it has to do with internet interface id