I'm getting this error pretty regularly lately, specifically after upgrading from 5.4.0 to 5.4.1: The CiviCRM public extensions directory at https://civicrm.org/extdir/ver=5.4.1|cms=WordPress could not be contacted - please check your webserver can make external HTTP requests or contact CiviCRM team on CiviCRM forum.
My dashboard is also pretty frequently showing "Sorry but we are unable to provide this at the moment"
Weird thing is I have another test instance on 5.4.1 and it's working fine. (Both instances in question are running on Amazon Lightsail.)
Are there maybe some directory permissions or something along those lines I need to check? I did some basic checking between the test instance that's working and the one that isn't and didn't see anything obvious.
Thanks for any ideas anyone has.