we are getting no valid credential found for windows servers after discovery
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01-17-2024 03:14 AM
earlier we were able to discover the windows servers(domain controllers) now we have tried to discover windows servers but we are getting below errors
1. Adding target to blacklist 'No Valid credential found for type(windows)
2. Failed exploring CI pattern, Pattern name: Credentialless discovery network device
what is the way to resolve this issue?

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01-17-2024 06:13 AM
Credential is not working currently on given device this is why it fallback on Credential less NMAP Discovery.
Make sure Credential is valid for given Host.
Credential-less host discovery occurs when a scanned host is found to be alive, but not active, or when all configured credential-based classification probes have failed.
Also in Affinity Table check which Credential was working fine in past and that credential is not working now.
Regards
RP
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01-17-2024 06:18 AM
There are multiple cause that issue
1.check the and validate the firewall port are open from Mid Server to Destination Port.
2. Check the Valid Credentials and run the test credentials from window Cred for Server.
Refer the below Resource for Windows Server Discovery.
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1116898
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Thanks
AJ
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