App-Lounge is not working when Phone is connected over USB-C-LAN-Adapter

Vendor Name: Fairphone
Device name: Fairphone 3 and Fairphone 4
Device CodeName: FP3 + FP4
OS-FP3: 3.2-t-20251022539004-official-FP3
OS-FP4: 3.2-a14-20251022539005-official-FP4
Rooted: No

AppLounge is not working when using an USB-C-LAN-Connector.

An Internet-connection is established and you can use i.e. the browser-app without problems.

When App-Lounge is opened, a black screen shows: “Connection not possible. Please check the Internet-Connection and try again”. Available Updates are still checked in the background and pronuced, but there is no possibility to dowload or install them. Also the search function for Apps or access any menue is not possible.

Thanks for help or fixing (pleeeease)
Cheers Liquid