One client is unable to access the CentOS server (can't ping or http).
Checking the rules in APF 9.7 (apf -l) and there seems no specific rule defined. tracert shows each step and connection fine until the server is reached.
How can I resolve the problem and unblock the client? If there is any additional details required I will edit and add to the post, I am not sure what to check next.
The client is assigned IP addresses in 2 ranges (both with the same ISP), 88.111.x.x and 79.69.x.x. The connection works when connected from 79.69.x.x.