480073 FSB Multiple Source DNS Issue
Revision as of 21:43, 18 November 2025 by DGast (talk | contribs) (Created page with "= Summary = This bulletin outlines a DNS-handling issue affecting T10 units running APU software version <strong data-start="200" data-end="211">5.3.5.6</strong>. While the APU102 application correctly pushes DNS settings to the network adapter during network configuration, the Windows operating system may have already assigned DNS servers to the adapter. This results in DNS entries from both the DNS.DAT file on the APU and DNS servers appropriate for the open inte...")
Summary
This bulletin outlines a DNS-handling issue affecting T10 units running APU software version 5.3.5.6. While the APU102 application correctly pushes DNS settings to the network adapter during network configuration, the Windows operating system may have already assigned DNS servers to the adapter. This results in DNS entries from both the DNS.DAT file on the APU and DNS servers appropriate for the open internet.
Impact
This will present to the user as the APU being unable to resolve URLs.
Affected Products
This issue affects APUs with T10 processors running application software version 5.3.5.6.
Diagnosis
Symptoms:
- Failed hostname lookups
- Failed server authentication
- Reporting/sync delays
- Loss of connectivity in DNS-required networks
Confirmation:
- At the APU Change prompt issue the following command
SHELL IPCONFIG/ALL
- The response should look like:
- Notice that the DNS Servers include 8.8.8.8 and 8.8.4.4. These were not in the DNS.DAT.
- The IPCONFIG utility shows the DNS errors.
Mitigation
The DNS servers can be updated manually.
Remove DNS Servers
All DNS servers that are not desired must be removed.
- At the APU Change prompt issue the following command