Support "Obtaining IP Address"/"Webpage Not Available"

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http://androidforums.com – This may be a combination of more than one issue I'm having. My tablet is a Galaxy Tab 2 7.0 (Wifi only), and my router is a Cisco DPC2325 to which I do not have admin access . My original issue is one that seems to have come up quite a bit on this forum: Although my Wifi connection worked fine while on vacation, when I got home and tried to connect to my home network I got stuck on "Obtaining IP Address", with the tablet eventually informing me "Network disabled. Poor connection" So far I've tried -Restarting the Tablet. -Factory Reset on the Tablet. -Power off (General)