I am using WP Fastest Cache and latest wpForo.
I have no problems with posts and caching. However, because of caching new users feel that they are not logged in. If they go to their profiles via Members page they can access and make changes to their profiles but they cannot access the forum. While logged in they are still seeing 'Register' and 'Login' options.
After clearing WP Fastest Cache everyone can access forums normally.
What should be disabled from wpForo's caching? HTML caching is disabled.
wpForo cache doesn't make problems for wpForo. it designed to make wpForo fast and light. You should not search solution in disabling of wpForo cache. You should disable your cache plugin for forums page. All cache plugins has options to exclude certain page from caching, so please remove the forum page for WP Fastest Cache.
just a note - I am using WP Rocket for caching. Best one I tested and I paid for other premium plugins too.
It actually works great with your cache even without me excluding the forum page.
TIP for wpForo users: I use wpForo caching with CloudFlare for SSL [free 15y SSL!] and extra minifications and speed PLUS WP Rocket.
The Rocket recently even handles critical path CSS.
On some of my other sites this feature won't work with a theme [unless perhaps I spend lots of time fine tuning exclusions for css and JS files].
On this forum site I use Astra theme - Free, basic but super light and fast loading great code.
Really just what I need for an SEO purpose site.
You want sites loading fast for better rankings and you want SSL on entire site for better rankings and user security.
Even with the Elementor page builder it loads so fast.
When your caching [great stuff, BTW!] along with CF and WP-Rocket- OMG, it rockets. Even on my Sloooow Caribbean Internet. Just incredible.
After some more testing, best to exclude forum page and its siblings. in WP Rocket settings as example it is in advanced tab. For me I place in 'Never cache (URLs)': /forum/(.*)
If you use /community/ or other slug just change from my example to that.
Okay, I have excluded forums path from the caching plugin. Thanks.
I am using WP Rocket for caching
I use it with poor results