I have an 890L jetpack. Has worked fine with my macbook pro and iphone. Recently, it shows as an available wifi connection, but at times won't stay connected to the iphone and shows as connected on the computer, but I can't access the internet. I suspect a large number wifi devicies in the neighborhood may be the culprit as when I take the 890L with me elsewhere, it works fine. I have the channel set to auto and have limited devices to 3, although I rarely use more than 2. Ideas please?