WordPress 404 Error: How to do 301 redirect in htaccess file WordPress: How to do a 301 redirect in htaccess file. How to fix HTTP error 404. Simple Steps... 1. login to website cpanel 2. open .htaccess file 3. write 301 redirect code 4. Redirect 301 /404-url/ http://ift.tt/2udOCsl 5. save htaccess & check if 404 to 301 redirect is working