Just started this evening. Affecting Android phone and Windows 7 netbook. I've power-cycled it. Wired connectivity is fine.

Symptoms: discovers network; connects then immediately disconnects or fails to connect at all. WiFi analyser on the phone shows that the signal strength apparently drops at the instant the Win7 netbook attempts to connect. Signal then returns.

Similarly, Wifi analyser doesn't show any nearby APs on the same channel.

Any ideas?
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-- roger