Enabling Require SSL in Internet Information Services (IIS) for any subfolder under the Snow License Manager site will cause a "The connection was reset" error, preventing access to pages in that subfolder.
IIS SSL Settings (Ignore / Accept / Require) operate at the HTTP application layer, after the TLS handshake is completed by HTTP.SYS (Windows kernel-mode HTTP listener).
When the root is set to “Ignore” SSL (the default setting for Snow License Manager), you are effectively telling IIS: This site does not expect HTTPS traffic.
This creates an inconsistent configuration with having an HTTPS-only binding, because:
- The binding says, "this site only listens for HTTPS."
- The IIS root configuration says, "this site does not expect SSL."
This mismatch causes HTTP.SYS to terminate the connection before IIS can process the request, resulting in:
- TCP reset (
ERR_CONNECTION_RESET) - Abrupt closure after the TLS ClientHello phase
Because the failure occurs at the transport layer, the subfolder’s settings are never reached.
If you have enabled Require SSL on a subfolder:
- Open IIS Manager.
- Navigate to the affected subfolder.
- Open SSL Settings.
- Clear Require SSL and save.
This reverts to the default behavior and restores access.
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Case id: 00001065
Activity: Status change: 2 hours ago