Comcast tried to immediately railroad into a protection plan, any tips on getting my router working again?

My Internet has been down for a few hours now. Ive reset it multiple times and it only shows a yellow blinking light. I tried calling customer support, told them that, and the lady said "I understand you're dealing with this problem, we are currently offering a 99.99 service for protection, what's your email." Surely there are other options or steps before dropping 100 bucks right? I wasn't even asked if I actually wanted it, they just... started. Any tips on fixing this myself or is this just their new initiative and I don't have a choice?