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10-25-2025 10:04 PM
Hi Team,
First of all "Happy Diwali". After a Long time posting my questions:
--> During Discovery Shazzam takes a long time to complete and Cannot discover some devices
Solved! Go to Solution.
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10-25-2025 10:19 PM
Happy Diwali and welcome back..
Shazzam cannot discover some devices
It could be a network connectivity issue. Please check that the ports used by discovery as listed on Shazzam probe, port probes, and protocols documentation for the device type are not blocked.
If you found my response helpful, I would greatly appreciate it if you could mark it as "Accepted Solution" and "Helpful."
Your support not only benefits the community but also encourages me to continue assisting. Thank you so much!
Thanks and Regards
Ravi Gaurav | ServiceNow MVP 2025,2024 | ServiceNow Practice Lead | Solution Architect
CGI
M.Tech in Data Science & AI
YouTube: https://www.youtube.com/@learnservicenowwithravi
LinkedIn: https://www.linkedin.com/in/ravi-gaurav-a67542aa/
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10-25-2025 10:20 PM
And the below article will definitely gona help you:
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0535234
If you found my response helpful, I would greatly appreciate it if you could mark it as "Accepted Solution" and "Helpful."
Your support not only benefits the community but also encourages me to continue assisting. Thank you so much!
Thanks and Regards
Ravi Gaurav | ServiceNow MVP 2025,2024 | ServiceNow Practice Lead | Solution Architect
CGI
M.Tech in Data Science & AI
YouTube: https://www.youtube.com/@learnservicenowwithravi
LinkedIn: https://www.linkedin.com/in/ravi-gaurav-a67542aa/
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10-25-2025 10:19 PM
Happy Diwali and welcome back..
Shazzam cannot discover some devices
It could be a network connectivity issue. Please check that the ports used by discovery as listed on Shazzam probe, port probes, and protocols documentation for the device type are not blocked.
If you found my response helpful, I would greatly appreciate it if you could mark it as "Accepted Solution" and "Helpful."
Your support not only benefits the community but also encourages me to continue assisting. Thank you so much!
Thanks and Regards
Ravi Gaurav | ServiceNow MVP 2025,2024 | ServiceNow Practice Lead | Solution Architect
CGI
M.Tech in Data Science & AI
YouTube: https://www.youtube.com/@learnservicenowwithravi
LinkedIn: https://www.linkedin.com/in/ravi-gaurav-a67542aa/
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10-25-2025 10:20 PM
And the below article will definitely gona help you:
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0535234
If you found my response helpful, I would greatly appreciate it if you could mark it as "Accepted Solution" and "Helpful."
Your support not only benefits the community but also encourages me to continue assisting. Thank you so much!
Thanks and Regards
Ravi Gaurav | ServiceNow MVP 2025,2024 | ServiceNow Practice Lead | Solution Architect
CGI
M.Tech in Data Science & AI
YouTube: https://www.youtube.com/@learnservicenowwithravi
LinkedIn: https://www.linkedin.com/in/ravi-gaurav-a67542aa/
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10-25-2025 10:32 PM
Thanks @Ravi Gaurav you are a Saviour.. I was searching for this kind of Documnet !!
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2 hours ago
| Common Error Messages in Discovery Status Logs: | Root Cause: |
| Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)) | Incorrect domain/username formatting in ServiceNow Credentials (DOMAIN\username). |
| RPC Server Unavailable. (Exception from HRESULT: 0x800706BA) | Dynamic High RPC ports (49152–65535) are blocked by corporate or local host firewalls (WMI mode). |
| Remote PowerShell probes require admin share access and PowerShell on the target. | The Windows account lacks local Administrator privileges, or UAC prevents remote administrative elevation (FilterNetworkPaths / LocalAccountTokenFilterPolicy). |
| Host is active, but unable to classify. | ADMIN$ share access is disabled, blocking remote execution of temporary PowerShell scripts. |
