Unable to resolve name via DNS
Could not resolve the user supplied URL through the watcher nodes Domain Name Service.
This can happen for a few reasons:
The DNS client side cache has a stale entry
The DNS infrastructure not available
The watcher node DNS settings are out of date or incorrect
DNS has a stale entry for the supplied target name and is returning the wrong IP address
Try the following troubleshooting steps to attempt to fix the problem
On a Windows Computer, at the command line type:
ipconfig /flushdns
Then type:
ipconfig /registerdns
Check with your network or domain administrator if there is any problems with the DNS infrastructure that the watcher node is configured to use.
Check the URL can be pinged. Note that in some cases, the network path from the watcher node to the URL may not allow ICMP, so ping may fail.
Do this by pinging by the URL name you supplied in the wizard. Type ping -a [URL]. For example, if the IP Address is www.microsoft.com:
ping www.microsoft.com
| Target | WebApplication_0483fe36bf634410b82439dea0bd071a |
| Parent Monitor | WebApplication_0483fe36bf634410b82439dea0bd071a.Request1.BasePage |
| Category | PerformanceHealth |
| Enabled | True |
| Alert Generate | False |
| Alert Auto Resolve | False |
| Monitor Type | WebApplication_0483fe36bf634410b82439dea0bd071a.BasePage.DNSResolutionFailure |
| Remotable | True |
| Accessibility | Public |
| RunAs | Default |
Home<UnitMonitor ID="WebApplication_0483fe36bf634410b82439dea0bd071a.Request1.BasePage.DNSResolutionFailure" Accessibility="Public" Enabled="true" Target="WebApplication_0483fe36bf634410b82439dea0bd071a" ParentMonitorID="WebApplication_0483fe36bf634410b82439dea0bd071a.Request1.BasePage" Remotable="true" Priority="Normal" TypeID="WebApplication_0483fe36bf634410b82439dea0bd071a.BasePage.DNSResolutionFailure" ConfirmDelivery="false">
<Category>PerformanceHealth</Category>
<OperationalStates>
<OperationalState ID="OK" MonitorTypeStateID="DNSResolutionOK" HealthState="Success"/>
<OperationalState ID="Error" MonitorTypeStateID="DNSResolutionFailure" HealthState="Error"/>
</OperationalStates>
<Configuration>
<RequestID>1</RequestID>
</Configuration>
</UnitMonitor>