Problem
When scanning a QR code from within Adams Upload to register the device, the following error may occur.
Registration failed
The certificate for this server is invalid.
You might be conne3ctioing to a server that is pretending to be “servername.domain” which could put your confidential information at risk.
OK
Solution
Check the registry in the following location for the list of functions.
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Cryptography\Configuration\Local\SSL\00010003
They should be in this order:
RSA/SHA256
RSA/SHA384
RSA/SHA1
ECDSA/SHA256
ECDSA/SHA384
ECDSA/SHA1
DSA/SHA1
RSA/SHA512
ECDSA/SHA512
Reference links
Thread with registry path
https://forums.iis.net/t/1225015.aspx?My+web+IIS+server+event+log+is+full+with+schannnel+error
MS blog about issues with TLS 1.2 adn SHA 512
https://docs.microsoft.com/en-us/archive/blogs/silvana/schannel-errors-on-scom-agent
Cipher Suites in TLS/SSL (Schannel SSP)