you have to change your router settings. while wifi may be limited compared to a lan connection the ping should be the same with a good setup.
get a good router that doesn't break the bank (like netgear dual band, $45) and a wireless card that is hardware based, not software. Most are not cheap.
second, setup the router to within a channel that is not used. wireless g and n both share frequencies that are very common. the best way to get around this is for wireless G, to check all 11 channels and find the one that doesn't cut out very often and for N set it to 40mhz on a odd channel.
Even if you had good equipment, leaving everything at default settings will be interfering with other wifi around you. my apartment has 15 other routers within the same building.NETGEAR WNDR3400-100NAS N600 Wireless Router Simultaneous Dual Band IEEE 802.11a/b/g/n 2.4/5GHz 10/100 Mbps Ethernet Port x4
Edited by hornybluecow, 24 March 2012 - 08:08 AM.