Default Galaxy Note no longer auto connects to wifi

I recently rooted my galaxy note 1 and installed a ram booster app which required root access. Now my note no longer auto connects to saved wifi network. It just notifies of available connections. And I have to manually select the network to connect each time. I disabled the ram booster and also uninstalled it. It doesn't work. I also pulled the battery, sim card for a good 3 mins, but still doesn't work. Someone please help?

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