Can someone help here?
Unless your iPad has also cellular capabilities, you can not unless you can tether your internet connection from a cellphone or other internet capable device to the iPad.
i'm using Siri on my Iphone 5, and several times when i've been driving - she tells me she needs an internet connection?
Happens to me too. It's pretty normal for mobile data connections to fluctuate and sometimes be unusable while driving. I've had that happen with AT&T, T-Mobile, Verizon and Sprint.
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