Nobody ever responded to you still?! I'm having the exact same issue here. Roku Express has worked for over a year now, suddenly on the Fourth of July it went out, cant connect to wifi at all, although other all other smart devices have no issues, only the Roku. Where is customer service?!!! 😩
Yes my problem started yesterday October 14, 2020. I spoke to someone at https://www.curtisint.com/product-support. today, they took down my model number, phone number, and my email, and said they would get back to me as soon as they can. I thought someone was stealing my WIFI, was about to call my wireless carrier.
Thanks for the post.
As @renojim mentioned, it would be very useful to post the screenshot of the issue you are experiencing and it directing you to this company so we can further investigate this issue.
In the meantime, we would recommend checking out some wireless troubleshooting tips on our Support page here: Tips for improving the wireless connection to your Roku® streaming device