First subdomain works – additional do not

I’ve added multisite to an existing WordPress install and successfully added a subdomain to the network. Unfortunately, when I tried to add a second and third subdomain to the network I’m receiving 404 errors. I initially thought the wildcard domain hadn’t resolved, but its been well over 72 hours. Any suggestions would be helpful.

Main domain: monmouthcountycriminallawyers.com
Working subdomain: redbank.monmouthcountycriminallawyers.com
Non-working: holmdel.monmouthcountycriminallawyers.com