I can't fix a redirect loop error I have.

When I change the permalinks back to their original post_id option, there is no redirect loop. But I need the permalinks changed.

When I deactivate all my plugins, I get no redirect loop but I get a 404 error.

I have tried the canonical plugin and the permalink migration one. I also tried the other redirect plugin too. Nothing seems to work. Do I really have to do a fresh install just to see posts? The main page works fine. It is clicking on individual links that will not work.

have you change your .htaccess content?

normally the blog will tell you, you have to change the coding and paste it to your .htaccess in root folder..

hope help..

Yes, did that. I even changed it from the one that is auto-generated to one that works fine for another blog. It's random these errors. They are on some blogs but not others and I cannot figure out why. I am just going to change hosting. Hostgator gives me no problems at all with blog installs. This host on the other hand is murder.

if I understand your problem the right way,I find this normal.
so if you are going to example.com/postid.php and get eror it's natural.
you must go to settings > permalinks and enter this in the custom field:
/%category%/%postname%.html as this will make your post like this: example.com/category/postid.php

so I should add the .html at the end is what you are saying? Because I have changed my permalinks, that's easy. And checked my htaccess pages, but it is so random this happens on some hosts and not others. But you are saying that if I add the .html to the end of whatever permalinks I choose, it will work? I will have to find a site that I was having this issue on and try it out. I reverted back to the standard permalinks in the mean time.

i had the same problem but it just went away