On 9/22/19 9:18 AM, Nikolaus wrote: > The access.log contains error code / detail "ERR_SECURE_CONNECT_FAIL / > SQUID_ERR_SSL_HANDSHAKE" - which is not too helpful - but the cache.log > contains the more detailed "ERROR: negotiating TLS on FD 19: > error:1425F175:SSL routines:ssl_choose_client_version:inappropriate > fallback (1/-1/0)". > Is a TLS fallback prevention mechanism kicking in by error? If so, how > to fix it? I do not know the answers to your questions, but I am sure that it is possible to figure it out by looking at either packet captures or detailed debugging logs. Unfortunately, I do not have enough free time to guide you through this triage. There were several similar complains about "inappropriate fallback" errors on this list recently. I would start by revisiting those threads for more clues. Alex. _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users