After updating my s3 to 4.3 my phn keeps connecting again nd again to my home wifi router nd internet had gone real slow.. at tyms it completely stops nd again i have to switch off/on my wifi to get it working. My other device nexus 4 running 4.4 works absolute fine on dis same wifi router.
I hve tried clearing d cache but of no use
Kindly suggest further troubleshooting.

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