D-star net, disconnect after 24h

[OK2PKT]

I have been using Jumbospot and Pi-star software version 3.4.17 for a long time to work over digital networks. There were no problems, I had active D-star, DMR, YSF. A few days ago I switched to the new latest version of software 4.2.3. There were problems with D-star net. The green color of the field changes to red within one day for unknown reasons and my connection to the D-star reflector stops working. I have to intervene in the settings-ADMIN-LOGIN-POWER-REBOOT. This helps, the settings are ok-the field is green again, everything works but the next day the D-star net field is red again and I have to repeat the procedure. Does anyone know how to eliminate this behavior?? Thank you.
ok2pkt Roman

[G4AON]

Two days ago I updated both my Pi-Stars, one uses a Raspberry Pi Zero W and the other a Pi 3B. Both now run 4.2.3 with a Chinese (eBay) MMDVM board complete with OLED displays.

No problems with D-Star, the 3B one has been on REF079 for over 24 hours.