Security Advisor werkt niet meer na de update op 13-09.
Na de update:
Na een herstart NAS:
Laatste rapport is van 10-09, voor de update:
Mijn Security Advisor heeft sinds de aanschaf van mijn DS1821+ altijd foutloos gewerkt.
Support ticket: antwoord van Synology AI Support.
1. Alle suggesties nagelopen, geen issues.
- Als preffered DNS heb ik mijn UniFi router staan op 192.168.1.1 en secundair 9.9.9.9. voorgestelde DNS geprobeerd, geen resultaat.
- Ik gebruik time.google.com voor NTP.
2. debug_s/n.dat opgestuurd via support ticket.
Synology AI Support
2025-09-14 18:21:55
Dear Customer,
In an effort to provide faster support and ensure a quicker resolution, we use AI to generate an initial response for certain topics, by either offering a solution or requesting additional details. If the response doesn’t fully answer your question, please reply, and one of our technical support engineers will follow up promptly.
Thank you for contacting Synology Support. We understand you are encountering an error message with Security Advisor after a recent update, stating that the operation cannot be performed.
This issue can sometimes be related to network or system configuration settings. Please try the following troubleshooting steps to resolve the issue:
Configure DNS Server:
Go to Control Panel > Network > General.
Tick the checkbox for Manually configure DNS server.
Set the Preferred DNS Server to 8.8.8.8 and the Alternative DNS Server to 8.8.4.4.
Click Apply.
Synchronize Network Time:
Go to Control Panel > Regional Options > Time.
Ensure Synchronize with NTP server is enabled.
Select a server from the dropdown menu, such as pool.ntp.org.
Click Update Now to synchronize the time.
Temporarily Disable IPv6:
Go to Control Panel > Network > Network Interface.
Select your active LAN connection and click Edit.
Go to the IPv6 tab.
Set IPv6 setup to Off and click OK.
Temporarily Disable Firewall for Testing:
Go to Control Panel > Security > Firewall.
Untick the Enable firewall checkbox and click Apply.
After disabling it, please try running the Security Advisor scan again. You can re-enable the firewall after the test.
After performing these steps, please try to run a scan in Security Advisor again to see if the issue is resolved.
Please let us know if these steps help or if the issue persists. We appreciate your patience and cooperation.
The following articles may contain the answer to your question:
[1] I encountered the "connection failed" message. What can I do?
[2] What websites does my Synology NAS connect to when running services or updating software?
[3] I received the message "Unable to connect with the Synology server". What can I do?
If your issue has been resolved, we invite you to leave us feedback by clicking Rate Your Experience on the side (Desktop Computer) or the top (Mobile Device) of the page.
If your issue remains unresolved or if you have any concerns about the provided instructions, please reply to this ticket to allow our technical support engineers to take over and assist you.
Best Regards,
Synology Technical Support
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