Category: Door Controllers & Modules

iSTAR Edge G1 and eX Controllers May Go Offline After a Qualys Scan

Article ID: SWH-KB-000038522 Summary Some customers may experience iSTAR Edge G1 and eX controllers unexpectedly going offline during Qualys vulnerability scans. This occurs when network vulnerability scanners actively probe the controller, which can disrupt normal operation and result in loss of connectivity until restarted.  Issue During active vulnerability scanning, the iSTAR Edge G1 and eX… Continue reading iSTAR Edge G1 and eX Controllers May Go Offline After a Qualys Scan

Edge G1 Controllers Fail to Come Online after Switch from Default to Host-based Encryption. Stunnel error: wrong curve

Warning – Level 2 Document – Do Not Distribute Article ID: 000038494 Date Published: 09/03/2026 Symptom Edge G1 controllers fail to come online after switch from default to host-based encryption. Host monitoring shows a successful certificate creation and download to controller. The following error in stunnel.exe process is seen in stunnel log when certificate is… Continue reading Edge G1 Controllers Fail to Come Online after Switch from Default to Host-based Encryption. Stunnel error: wrong curve

OSDP version of RM-4E, I8 are slow to detect Input changes

Article ID: SWH-KB-000037721 Issue Statement Slow input detection on OSDP RM-4E and I8. Affected Versions  OSDP (G2) versions of RM-4E and I8. Symptoms When using an input on an ACM (G1 and G2), the response to an input (such as a Request-to-Exit button) occurs very quickly (approximately 200 milliseconds). When using an input on a… Continue reading OSDP version of RM-4E, I8 are slow to detect Input changes

iSTAR Journal Message “Certificate will expire in X days” after Certificate Switch

Article ID: SWH-KB-000038477 Summary Customers may see recurring journal messages stating “Certificate will expire in X days” for iSTAR controllers even after certificates have successfully switched from default to host‑based or panel certificates.  Versions Affected Issue has been noticed in the following version, and can be seen in other version: C•CURE versions: 2.90 SP6 2.90 SP7 CU01 3.00.4 CU02… Continue reading iSTAR Journal Message “Certificate will expire in X days” after Certificate Switch

C•CURE 9000 v2.70 TLS Certificate Update Defaults to 1 Year

Warning – Level 2 Document – Do Not Distribute Date Published: 06/02/2025 Article ID: 000038452 Overview This document shares the problems, troubleshooting processes, handling methods and final results during the TLS1.2 certificate update (host-based encryption mode) for Edge and Ultra controllers in C•CURE 9000 v2.70.  System Version: C•CURE 9000 v2.70 SP5CU02 Controller Types and Firmware… Continue reading C•CURE 9000 v2.70 TLS Certificate Update Defaults to 1 Year

v3.10 C•CURE Converting a Cluster from TLS 1.2 to TLS 1.3 Encryption (one-step conversion)

This video demonstrates how to convert a controller using TLS 1.2 Encryption to TLS 1.3 Encryption in C•CURE 9000 v3.10.