What should I do if I cannot connect to my home network or the internet? Roku error code 018 will occur when your Roku device detects slow internet speeds. Make sure you check with your ISP to know what speed connection you have subscribed to. You can upgrade to a http://sergiotibhk.ka-blogs.com/23500798/roku-error-code-018-guide-to-fix-slow-speed-internet-connectivity-on-roku