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I read in another thread that the IP Allow overrides the IP Deny. I had a range of IP addresses in the IP DENY and a single IP address in the ALLOW. The single IP was still denied.
Example
DENY FILE
[INDENT]26.132.12.0/24 # Deny[/INDENT] ALLOW FILE
[INDENT]d=1111:s=26.132.12.200 # Allow[/INDENT]
The IP 26.132.12.200 was still not able to log in until I removed the deny entry.