Magenta Smarthome keeps disconnecting?

I have roller shutter controls and security gadgets from Telekom and Homematic (IP) that I want to connect to the Quivicon Homebase 2 (the central unit). This always worked before, but the central unit regularly throws out the products. Often, reconnecting doesn't work anymore… Can anyone help me? I own the following: Quivicon Homebase 2…