Since you are using decimal number in a hex number settings, you need multiple subnets.
Better if you setup range using 16/32/64/128 etc, not 20,80.. Then one subnet would be needed.
This will cover from 20 to 80.
192.168.88.20/30 20-23
192.168.88.24/28 24-31
192.168.88.32/27 32-63
192.168.88.64/28 64-79
192.168.88.64/32 80
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Use Splunk> to log/monitor your MikroTik Router(s). See link below. 