Article - CS403348
Windchill is not accessible using https with error "This site can't provide a secure connection" in Windchill PDMLink
Modified: 28-Nov-2025
Applies To
- Windchill PDMLink 12.0 to 13.0
Description
- Windchill is not accessible using https with error:
This site can't provide a secure connection xxx.xxx.com sent an invalid response ERR_SSL_PROTOCOL_ERROR
- Apache access.log:
127.0.0.1 - - [11/Oct/2023:10:21:06 +0000] "\x16\x03\x01\x02\x01\x01" 400 226 21975
- Apache error.log:
[Wed Oct 11 10:20:31.298395 2023] [core:debug] [pid 348:tid 3076] protocol.c(1447): [client 127.0.0.1:50676] AH00566: request failed: malformed request line
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