Anybody else have a problem with the fact that visitors will blame their computer or their ISP first before the website that returned the 404 error? My persona

Anybody else have a problem with the fact that visitors will blame their computer or their ISP first before the website that returned the 404 error? My personal experience is that if users are confused about what system to blame, they blame any systems they can! I'd guess this approach works if you have a large user base with a lot of churn. It doesn't matter if you upset a particular user because they probably wouldn't return anyways.