I am also a bridged router from shaw. It didn't stop any freezing here. I ve had an interesting past few days below.

10th, discovered freezing, and put up with freezing for 24 hours
11th, got vpn configured and up and running, shaw was freezy and vpn was rock solid
12 + 13th vpn has been absolute crap, not only has the picture still been freezy on shaw it completely disappeared for 3 minutes at a time on vpn.
today the 14th, vpn refund in process and shaw is rock solid

go figure.