Airport Time Capsule disconnected

Hello,

We have linked a time capsule to 2 Apple devices via the FE file explorer app. Now I just wanted to connect it to my Windows laptop. However, this was more difficult than expected, because he did not want to automatically get between network devices in Windows Explorer. Then I started looking around in airport utilities and turned on wireless connections. This disrupted the entire device, making it no longer accessible from Apple devices. Then I had to log in to an Apple network to get back into airport utilities. The only thing I did then was disable wireless connections, essentially putting it back to how it was. Now only that apple network is gone, but I can no longer access the airport utility normally. How can I ensure that I can access the time capsule via the Apple devices again? If that is possible again, my question would also be how I can open it from my laptop, if I have already successfully connected it with airport utility.

P.S. the time capsule contains data I don't want to lose...

Kindest Regards...