Answer:
The host-based firewall settings are blocking the service
Explanation:
Host-based firewall settings can be configured on each workstation. The firewall can be provided by the operating system itself, or it can be a standalone software package that provides security features and functionality for the device's network connection. If this firewall contains incorrect settings, legitimate services can be blocked, and if so, a message will usually notify the user of such a breach. In these cases, the firewall settings need to be adjusted to make the desired service work.
Microsoft Access is a database management system that is part of the Microsoft Office Suite.
According to its structure I'd say that this is SEAL (<span>Software-Optimized Encryption Algorithm). It's difficult to describe how it works, because this kind of ciphers is very tricky. This algorithm uses 160 bit key and it uses 3 tables (R, S, T) to encode and decode.
I'll attach the image where you can see a process of creating a pseudo-random function:
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It should be under lined, when you press it it should have a different colour
