Kindly confirm port access required unidirectional or bidirectional?
Lansweeper service to scanned network devices
Lansweeper uses bi-directional traffic to retrieve information from your assets. For Windows assets, it is important to know that Windows sends WMI data back over random ports, as explained in this Microsoft knowledge base article: https://learn.microsoft.com/en-us/windows/win32/wmisdk/connecting-to-wmi-on-a-remote-computer
More information on the protocols used by Lansweeper can be found in the following knowledge base article: https://community.lansweeper.com/t5/requirements/ports-scanned-or-used-by-lansweeper/ta-p/64273