When connecting to home wifi network I get "Authentication error occurred" even though it's the good password.
It first occurred on stock 4.1.1 ROM with stock Kernel even before rooting. What's more interesting is that I've successfully used the same wifi network for around a month. Other devices connect just fine, no settings on the router changed when this started happening. Didn't fiddle with any settings on the phone neither. I can connect to free wifi APs just fine.
What I've tried:
- Dialing *#0011# and from service mode disabling wifi power saving feature.
- Using all possible encryption combinations on the router (Open - no password, WEP, WPA-PSK AES and/or TKIP, WPA2-PSK AES and/or TKIP or both WPA and WPA2 at the same time), switching channels, disabling 802.11n mode.
- Using some modded wpa_supplicant files from this thread.
- Using a bad password just to get a different error.
- Downloading some other wifi connectors from the Play Store including Wifi Connection Manager which claims to "Fix device Wi-Fi problems." by cleaning the stored wifi config files and maybe something more.
- Flashed Omega v10 ROM with Perseus kernel.
All these things and basically any combinations of them worked to no avail. And the only thing that helped was being very close to the router. That way I manage to connect but moving a couple of meters away, like to a nearby room, and it starts giving the same error even though the network strength is still full at that point.
I saw a similar issue at a couple of places including a similar thread last active dec 23rd, Android issues on code.google.com and androidforums, but no solutions found there worked. Also comparing how my old original Note and an even older LG P500 perform, the wifi signal is obviously weaker on the Note 2. My area is not heavy on wifi networks, so my guess is there's something wrong with wifi drivers or configuration. Sooooo.... What can I do to remedy this issue and also is there any way to beef up my wifi in the process?