I have a Linksys Cisco E1200 V2 wireless N router. I've had it for a while and have had no issues until now. I'm on Comcast internet. If I connect directly to the Modem, it's lightning fast all the way around. However, when I run a speed test while on the wireless internet, my ping is anywhere from 9ms to 15ms, download speed around .5-1.5 mbps, and upload speed of 5-6mbps. So, only my download speed is messed up.
I didn't change anything that would have sparked this. I have updated to the latest firmware version 2.0.05. I have tried going into the advanced settings to the Qos and disabling the WMM support, I've changed the channel about 6 times to different ones, I've tried lowering a setting (I'm sorry, but I forget what it's called, something about the maximum packets) down to 1300 based off a suggestion I found online, it's on WPA2/WPA Mixed security mode, but I've also tried the WPA2 Personal. I've tried the hard reset button on the bottom as well.
I'm at a loss, I don't know how to fix it, and Cisco wants to charge me $30-$40 up front just to talk to me about it. Please help!