Hi @jim cook,
The ERR_SSL_KEY_USAGE_INCOMPATIBLE error specifically suggests there is a problem with how the SSL certificate is being used or is recognized by Microsoft Edge, potentially due to a misconfiguration in IIS or an issue with the certificate itself.
You can try removing the Self-Signed Certificate and create a new certificate using PowerShell and a key usage flag of "Digital Signature".
Or you can try the following workaround to resolve this issue:
- After win+r opens, enter "regedit" and navigate as follows:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Edge
. - Create new DWORD entry named:
RSAKeyUsageForLocalAnchorsEnabled
- Set the value to:
0x00000000 (0)
Note: Create the above registry location if it does not already exist.
The appropriate solution is for the server certificate to be re-issued with the correct keyUsage bits set.
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Best regards,
Yurong Dai