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Resolved 502 Bad Gateway with following 404 Error - peer closed connection in SSL handshake (104: Connection reset by peer) while SSL handshaking to upstream

Bernert

New Pleskian
Hi,

we migrated 2 Domains from an Plesk 12.5 Server to Plesk 18.0.29 Server (Linux).
After installing a letsencrypt Certificate we can´t reach these 2 websites .

Error from Protokoll:
8791#0: *469 peer closed connection in SSL handshake (104: Connection reset by peer) while SSL handshaking to upstream

we renewed nginx and we configuration files - no changes
run plesk repair - no changes

when deactivating permanent 301 secure forwarding we can reach the sites again (without https)

All other sites on the server are working perfectly with letsencrypt but the certificate was installed in plesk version 18.0.28

any suggestions? - thx
 
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