Since the last update ... My WiFi signal is always at least one bar lower than usual. I haven't changed anything on my WiFi network and my other WiFi devices are working great. Anyone else experiencing this?
No. In fact, my WiFi is better since the update. I used to have problems where I'd have connection but no throughput. The only fix was to toggle the radio off and on.
That said, maybe you should stop worrying about bars. They may not mean all that much. Are you getting the same connectivity range? Also, you can look at an app called WiFi Analytyics. Is that saying that you are getting a good signal? If not, then you have a problem. If you do have a good signal, then you should be ok.