Published at LXer:
If you're running Android Lollipop, and you rely on Wi-Fi, you have probably witnessed the dreaded "!" showing up in your Wi-Fi notification. What does it mean? How do you solve it? The possible solutions are many, but this is the only solution I've found that actually works. The only caveat to this solution is that it requires you have a bit of information about the wireless network you're having issues with.
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