Connectivity Kit version 20210609 non responsive

[StephanP]

Connectivity kit version 20210609 chokes, gets stuck/non responsive on my Lenovo L13 Yoga laptop with Windows 10. This occurs with the 32bit as well as the 64bit version, connected with the school wifi network as well as at home. Colleagues with the same laptop model are experiencing the same.
On my desktop PC, however, this latest version 20210609 (64bit) just works fine.

A previous version 20180706 just works on my Lenovo L13 yoga laptop.

Any ideas?