WebFig: ERR_CONNECTION_RESET with Let’s Encrypt certificate

RouterOS General
1

Hi,

I’m having trouble accessing WebFig via HTTPS.

When I use a Let’s Encrypt certificate for the www-ssl service, I get ERR_CONNECTION_RESET when trying to connect to WebFig with a browser. A self-signed certificate works fine.

(RBD53iG-5HacD2HnD; hAP ac3)

Could someone please help?

/ip service
set telnet disabled=yes
set ftp disabled=yes
set www-ssl certificate=letsencrypt-autogen_2022-12-10T21:52:01Z disabled=no tls-version=only-1.2
set api-ssl certificate=letsencrypt-autogen_2022-12-10T21:52:01Z tls-version=only-1.2




#      NAME					COMMON-NAME	SUBJECT-ALT-NAME	FINGERPRINT                                                     
0 K  T letsencrypt-autogen_2022-12-10T21:52:01Z	example.com	DNS:example.com		XXX
1 K AT selfsigned				example.com				XXX

mk_webfig.png

2

You create RSA or ELLIPTIC CURVE?

3

2048 bit RSA
using command:

enable-ssl-certificate dns-name=example.com