Complications with firewalls and antivirus systems

392 views  April 20, 2022

Please take into account in the settings of your Windows firewall and, if applicable, your virus scanner that "Z21_Maintenance.exe" must be able to access ports 21105, 21106 and 34472 via UDP in order to communicate with your Z21.

Very sharp settings on the virus scanner and firewall can cause communication on these ports to be reported as "suspicious network traffic" and blocked.