@jose_martino -- noisy XB6
This is a very-common thread on this discussion forum. One answer is to try to get Shaw to swap-in the newest XB7 modem. This may require you to upgrade your contract to the Shaw Fibre+ Gig (or "Gig 1.5") level. Note that the latest offer to non-Shaw customers is Shaw Fibre+ 500, with the XB7. Check the other threads, for other suggestions (extra cooling, physical baffles, et cetera).