Iphone 4 doesn't reconnect wifi after sleep

Hi.
I'm connecting to my home wifi - works fine.
after iphone turnn into sleep mode,after awake it doesn't re-establish the wifi connection unless I either reset network configuration or close\start wifi connection.
If I go directly to internet application the connection doesn't re-established
Thanks,
Guy

Hi guys,
Maybe it's not the best to bring to life such old discussions, but I had the same problem with my iPad 2 and my iPhone 5, using a Linksys WRT54G.
The problem was completly solved by changing the SSID from "linksys" to anything more "unique".
Hope this help you in case you're still facing this issue.
Regards.

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Iphone 4 doesn't reconnect wifi after sleep

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