Problems with the ZyXEL P-660R modem?

I just purchased the TekSavvy 10Mbps 400GB DSL plan and every time I upload a heavy download, I'd say 2GB or more, my website crashes after a few moments.

I found it necessary to turn off the modem, turn it off for a while, then plug it back in and restart. camzap omegle

Every time I have to reset the modem, I notice it overheating.

So my question is: is this modem too hot? Is there a known issue? Could this be the source of my concern?