I cannot access my server from a specific IP
A few days ago I made a few port connectivity from my home IP (yes; I have a static and permanent public IP at home) to my own SkySilk server. It seems that my home IP is somehow banned and after three days I still cannot access my SkySilk server from my home IP. However, I can access it from other IPs. There is nothing in my server's firewall (at Linux firewall and at SkySilk VPS Firewall) that prevents the access.
How can I unban my home IP?