Really weird connectivity issues with my wifi on my iMac these past 2 weeks. I used to get about 10-15mbps download while on my iMac in my bedroom. I have changed nothing with my internet provider, I have not moved or touched my router (besides a reset I did today to see if that was the issue), but my download is now about 2-5mbps via speedtest dot net. All Mavericks software is update also. Anything I can try? I doubt its a failing wifi card because would it just not connect then? Suggestions?