After a long connection to a wi-fi hotspot, my iPod Touch suddenly won’t connect to anything. It can search some hotspots but not really connecting to any of them. What are my options?
IPod Touch not Detecting Wi-fi
Hi Maggie Alley,
               Basically, it’s not a fault but a bit overload on the Wi-Fi Device (it’s a very common issue in iPhone, iPad or even in iPod touch.
You may try following tips solutions to resolve this issue:
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 Try turning Off and On your Wi-Fi module by going into the Settings > Wi-Fi >Turn OFF and then Turn it to ON.
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 Go to Settings > Wi-Fi and select a network from the available networks from the list.
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 Note: all those networks that are Closed/Private network tend to hide their names from the public Wi-Fi devices. In such a case Join your Closed/Private network by simply going into Settings > Wi-Fi > Other and then provide the network name and password with security code etc. In this way you should be able to get access to the internet again.
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If the problem persists, restart your router i.e., Wi-Fi router
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If the problem persists, try joining an open Wi-fi network which is not a closed one, not protected by any key and most importantly which is working on your other devices, should work on your iPod too.
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If the problem persists, you might also be having a hardware issue because hardware issues can also cause such problems.
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Upgrading device software can also help in resolving this issue.
Applying these steps may also resolve one or more of the following issues:
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Cannot join any Wi-Fi Network
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Low signals or very weak signals strength of Wi-Fi Hotspot
Occasionally connected to Wi-Fi network but cannot access the internet.