Oh forgot to mention – no other plugins other than the default WordPress ones, and using the default Buddypress theme.
This is a clean install and I am perplexed
I too am having the same issue, getting 404’s on anything member account related, can’t even view the profile page. The only difference is, my site is live and not a fresh install, I have already disabled plugins, and tried the default buddypress theme, and still get the same errors. I have searched online all over and not found a solution. I will gladly provide a login to someone who fixes buddypress.
Help!
@palmdoc it’s usually the issue with needing to add /index.php/ to your permalink. Check out if the following link will help you https://codex.buddypress.org/developer-docs/iis7-web-config/
@FuriousCigars after changing to bp-default theme, clear cache and run Settings > Permalinks.
@mercime…done that multiple times, I am now in the process of removing buddypress and doing a fresh install
According to my Permalink settings it is
/index.php/%year%/%monthnum%/%postname%/
Still getting the 404’s 
I am too after the fresh install
@mercime…after the fresh install i tried what you said…still 404’s everywhere in buddypress theme too.
I gave up and went with a Linux server and it’s now OK