disabled scram as possibly not compatible with stun/turn auth

data/conf.d/31-auth.yml

@@ -1,8 +1,10 @@
 auth_method:
   - internal
 #  - ldap
-auth_password_format: scram
-auth_scram_hash: sha512
+# disabled scram as possibly not compatible with stun/turn auth
+#auth_password_format: scram
+auth_password_format: plain
+#auth_scram_hash: sha512
 
 disable_sasl_mechanisms:
   - "digest-md5"