My mother had a similar issue with connecting via WiFi on her N7 2012. She is on the latest 4.3 update.
This was fixed by going into the time settings and changing the "use network time" option. Sure enough it worked. Only thing I could think of is it was trying to poll for the time and/date as it was connecting and causing a problem. Sounds odd but it worked
Sent from my Nexus 7 using Tapatalk 4
First of all, this topic is long dead, but still couldnt stop myself from registering, quoting to your post...
all in appreciation of BIG THANKS for saving me from my phone's rooting>deleting>installing all apps> and have pressure situation of whether all this will work or not
by just getting back to date from 10-12-2015 to 07-12-2015, in my case to be precise... VOILAA!!! everything back to normal ~~~ and here i am posting on this forum, my first post as appreciation to both the creators of this thread/topic and the valuable sharer of solution #BigThanks
p.s. had been searching throughout the net for the solution and found some interesting details... would love to share for others (if it can prove helpful)
... factory formating/ soft or hard resetting wont work, so as the phone rebooting will also be noteffective
... setting back clock (manuallly) worked like a charm for me (my mobile lenovo Vibe X, carrier Vodafone)
... this problem arose, in my case, when i updated certain apps 5or6 OTA on Google Play Store (mainly Google inbuilt ones) ~~~ for others sufferers as i came to read through their posts >>> when they updated their handsets (for any updates... irrespective of any app) their wifi settings got disturbed causing the wifi to lock while initialising, not allowing the user to switch On or OFF, just displaying the scree n WIFI turning ON/Scanning/Starting/Searching/etc.
... a common solution suggested by many (which even i was going to try ~ if above hadn't work) was
>>>
solve it by deleting /data/misc/wifi/wpa_supplicant.conf. It will reset all your saved networks. have your phone rooted and delete the file through a root explorer or you can remove it via ADB (adb shell rm -r /data/misc/wifi/wpa_supplicant.conf. I'm not sure).
You may backup it before, then open with a text reader to see your saved passwords.<<<
on many forums, this was the common solution accepted as the only chance to get rid of the problem.
Hope this, post helps you all,
regards
aebbee
Dt. 14-12-2015
p.s. after one day the same problem rose again, making it difficult this time. Even after changing date-month-year, no effect was found on locked wifi button.
Was searching for rooting software, etc for one&half day.
Tried changing date again to see if works & BINGO... everything smooth since then. Seems this surely works.
Dt. 19-12-2015
p.s. since 14/12 no problem whatsoever, but today evening again it surfaced. Will try the same solution, & check whether it helps ?