Let's Debug

Test result for dev.mdm.uso.org using http-01

Error
dev.mdm.uso.org has an A (IPv4) record (20.81.4.131) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with dev.mdm.uso.org/20.81.4.131: Get "http://dev.mdm.uso.org/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://dev.mdm.uso.org/.well-known/acme-challenge/letsdebug-test (using initial IP 20.81.4.131)
@0ms: Dialing 20.81.4.131
@10000ms: Experienced error: context deadline exceeded
A test authorization for dev.mdm.uso.org to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
20.81.4.131: Fetching http://dev.mdm.uso.org/.well-known/acme-challenge/W17fA6CxOASPU--Y6ZwrRrcdCppydKingg7LOl7IWUA: Timeout during connect (likely firewall problem)

Submitted Nov 6 22:26:59 2023. Sat in queue for 3ms. Completed in 23s. Show verbose information.