I recently moved into a new apartment and it came outfitted with its own wireless network. The router is conveniently right outside my apartment door, but my room is the furthest from it and the signal goes through several walls. I have been experiencing poor latency at times regardless of what I am doing (youtube, diablo 3, LoL). I have a 30$ Belkin USB adapter from Best Buy (purchased around 6 months ago) at the moment that worked well before but now the internet seems awful!
Is my adapter the problem, or is it shitty apartment internet? If it is the adapter, what is my best option? My latency in games is usually 200-300ms which is barely playable! I'm willing to sink about 50$ into a new adapter if necessary.