WiFi Router Problem since 4.3

Aug 4, 2013
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This is really bizarre. Ever since the 4.3 update, my DSL modem/router (Westell 327W) has been acting extremely weird when the N7 touches the Internet...Gmail, Facebook, Drive, simple browsing. It's as though the router is being saturated with traffic. Router goes through a warm boot (dumping my other computers) and things are OK again...until the next time the N7 starts doing something. N7 is also extremely sluggish at times since 4.3, but that is likely not related. Anyone else run into this? Ideas for how to fix it?