Wifi connectivity issues - need advice

Hi fellow Roku users,

I've seen almost 100 posts on frustration from connectivity issues. I've had the same. My first Roku lasted 5 months. My second Roku lasted 3 days. What I haven't seen is what you have done? Did you switch to Firefox? Ditch your now useless Roku? Attempt to send it back if it's under warranty ? (good luck with that by the way). I tried 8 times to send an email to Roku only to be met with "oops something went wrong on our end. Try again". Just wondering what everyone is using now to stream??