Problem:
Web-browser reports PR_CONNECT_RESET_ERROR or ERR_CONNECTION_RESET when trying to manage APC via https.
Cause:
SSL certificate invalid.
Solution:
https://www.apc.com/us/en/faqs/FAQ000233142/
ssh -c aes256-cbc <IPAddress>
cd ssl
dir
delete <filename>.p15
reboot
HTTPS should work after restart.
Alternative Solution:
ssh -c aes256-cbc <IPAddress>
web -h enable
reboot
Connect via HTTP and Delete the certificate via Web UI
Navigate to Configuration --> Network --> Web --> SSL Certificate --> Select “Remove” --> Apply.
Navigate to Control --> Network --> Reset/Reboot --> Select “Reboot Management Interface” --> Apply.
HTTPS should work after restart.
Revert HTTP to disabled if desired.
Recommended:
Update firmware, but newest firmware seemingly still using CBC ciphers. 😩
good luck!