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XB3 Modem

Regular Contributor

XB3 Modem

I have a Comcast XB3 Gateway Model TG1682G.

 

According to Comcast the modem can support up to 700Mbps. However, when I call to get 400Mpbs internet on a different package they keeping telling me it does not.

 

https://www.xfinity.com/support/articles/wireless-gateway-compare

 

Can anybody explain?