I'm upgraded to the latest R090, I don't know if it was after the upgrade or not but I'm having problems with 2.4ghz signal going in and out.And also download speed dropping. Also the upload speed on my 2.4ghz is higher than download. My 5ghz matches my internet speed so there doesn't seem to be problems. I tried the 2.4ghz on TV,PC,phones,etc but its messing up on all devices. It dropped to 100-200 kbs on my TV out of nowhere when I was watching netflix. And then it goes back up to somewhat normal speed.
