"multiple settings wrong", why do you think that ?
you read my text ? problem is stunnel, not
blue iris.
the connection via http is stable, only connects over stunnel (https) crashes !
Does Blue Iris have a problem running on port 80 ??
In any case, this is not used by another service on the system.
the stunnel log says ok, when restart no helpfull lines in logfile, only:
2019.04.02 00:37:43 LOG5[main]: stunnel 5.50 on x64-pc-mingw32-gnu platform
2019.04.02 00:37:43 LOG5[main]: Compiled/running with OpenSSL 1.1.1a 20 Nov 2018
2019.04.02 00:37:43 LOG5[main]: Threading:WIN32 Sockets:SELECT,IPv6 TLS:ENGINE,OCSP,PSK,SNI
2019.04.02 00:37:43 LOG5[main]: Reading configuration from file stunnel.conf
2019.04.02 00:37:43 LOG5[main]: UTF-8 byte order mark detected
2019.04.02 00:37:43 LOG6[main]: Initializing service [blueiris]
2019.04.02 00:37:43 LOG6[main]: Loading certificate from file: Certs/wildcard.domain.net.cer
2019.04.02 00:37:43 LOG6[main]: Certificate loaded from file: Certs/wildcard.domain.net.cer
2019.04.02 00:37:43 LOG6[main]: Loading private key from file: Certs/wildcard.domain.net.key
2019.04.02 00:37:43 LOG6[main]: Private key loaded from file: Certs/wildcard.domain.net.key
2019.04.02 00:37:43 LOG6[main]: Client CA: C=AT, ST=Austria, L=tralala, O=domain.net, OU=CA, CN=ca.domain.net, emailAddress=administrator@domain.net
2019.04.02 00:37:43 LOG6[main]: DH initialization not needed
2019.04.02 00:37:43 LOG5[main]: Configuration successful
2019.04.02 00:37:43 LOG6[main]: Service [blueiris] (FD=572) bound to 0.0.0.0:443
2019.04.02 00:38:43 LOG6[cron]: Executing cron jobs
2019.04.02 00:38:43 LOG6[cron]: Cron jobs completed in 0 seconds
2019.04.02 00:39:24 LOG5[0]: Service [blueiris] accepted connection from 10.8.5.101:63254
2019.04.02 00:39:24 LOG6[0]: Peer certificate not required
2019.04.02 00:39:24 LOG6[0]: No peer certificate received
2019.04.02 00:39:24 LOG6[0]: Session id: 8C1F5984C1E9DECFEA13C36359EE6E89A09E61010AB6FBB5BD5C861AFBD6CDB1
2019.04.02 00:39:24 LOG6[0]: No peer certificate received
2019.04.02 00:39:24 LOG6[0]: Session id: 2A721CCE2D9B7A051D444C7431E68B8D83DCB592D9C6A56E9B5ED34FC85801D1
2019.04.02 00:39:24 LOG6[0]: TLS accepted: new session negotiated
2019.04.02 00:39:24 LOG6[0]: TLSv1.3 ciphersuite: TLS_AES_128_GCM_SHA256 (128-bit encryption)
2019.04.02 00:39:24 LOG6[0]: s_connect: connecting 127.0.0.1:80
2019.04.02 00:39:24 LOG5[0]: s_connect: connected 127.0.0.1:80
2019.04.02 00:39:24 LOG6[0]: persistence: 127.0.0.1:80 cached
2019.04.02 00:39:24 LOG5[0]: Service [blueiris] connected remote server from 127.0.0.1:56469
2019.04.02 00:39:24 LOG6[0]: TLS closed (SSL_read)
Edit: i changed the post title