Ensure ports and 25735 are open on the server firewall.
If the error persists, proceed.
This error typically prevents the software from launching entirely or forces it into a read‑only, degraded mode. If you are seeing this message, you are not alone. This article provides a deep dive into what this error means, why it occurs, and—most importantly—step‑by‑step solutions to resolve it permanently. Ensure ports and 25735 are open on the server firewall