Custom OID Alert Checker

I'm trying to setup an Alert Trigger for a DHCP Scope on a Windows Server.  I want the alert to get triggered when the available 'leases' for the specific DHCP scope are near maxed out.

This is my environment:

                Observium ver:  CE 20.9.10731
                OS:  Ubuntu 20
                Sendmail:  Postfix

I'm getting alerts for when my devices go down without an issue, just no the 'Custom OID' alert checkers are working.

Before I created the Alert Checker, I performed an 'SNMPWalk' for the specific OID for the specific DHCP scope and it returned a value of the remaining DHCP lease that are left.  The scope in question is the '10.38.231.0' and currly have only 3 available aleases left.

What I've done so far is this.  On the 'Alert Checks,' I've defined a alert checker and chosen the 'Entity of 'Custom OID.'

For the 'Test Condition,' I configured it to look for a value of '3.'

                   Metric:  value eq 3

I've configured the 'Entity Association Ruleset' and configured it as follows:

                  Custom OID Numerical eq .1.3.6.1.4.1.311.1.3.2.1.1.3.10.38.231.0

                   AND

                   Device Hostname eq <serverName>.<domainName>

So, from my understanding, when Observium runs the alert job at its next run interval, it should send out an alert email if the Device Hostname <serverName>.<domainName> AND Custom OID Numberical eq <oidID> value eq 3

I've even setup the Entity Association Ruleset to ONLY the 'Custom OID Numerical' and left off the 'Device Hostname' rule, and I'm still not getting an alert emailed sent to me and I know that the value of the specific OID is currently set to the value of '3.'

So, I'm I doing anything wrong and if so, can you please direct me in the right direction, to solve my problem

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