https://community.dynatrace.com/t5/Troubleshooting/Private-Synthetic-Location-Not-Available-for-ICMP-NAM-Monitors/ta-p/299368 <H2>Summary</H2> <P>This article focuses on <STRONG>Dynatrace Synthetic Monitoring</STRONG>, specifically <STRONG>Network Availability Monitors (NAM) using ICMP</STRONG>, and explains why a <STRONG>new private Synthetic location</STRONG> may not be selectable when creating ICMP monitors. It helps users understand the <STRONG>platform prerequisites and system-level dependencies</STRONG> that determine whether ICMP monitoring is available from a private location.&nbsp;</P> <P>&nbsp;</P> <P><LI-TOC indent="15" liststyle="disc" maxheadinglevel="3"></LI-TOC></P> <DIV> <P>&nbsp;</P> <H2>Problem</H2> <P>After deploying Synthetic-enabled ActiveGates and assigning them to a <STRONG>new private Synthetic location</STRONG>, the location appears as <STRONG>“Not supported”</STRONG> when attempting to create an <STRONG>ICMP (Network Availability) monitor</STRONG>.</P> <P>In the Dynatrace UI:</P> <UL> <LI>Synthetic app&gt; Private locations. The private location&nbsp;shows a <A href="https://docs.dynatrace.com/docs/observe/digital-experience/synthetic-on-grail/synthetic-app/private-locations/manage-private-locations#health-status" target="_self"><STRONG>Compatibility</STRONG> health alert</A>.&nbsp;<BR /><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="HannahM_0-1778665824379.png" style="width: 999px;"><img src="https://community.dynatrace.com/t5/image/serverpage/image-id/33136iB06784B114D973C1/image-size/large?v=v2&amp;px=999" role="button" title="HannahM_0-1778665824379.png" alt="HannahM_0-1778665824379.png" /></span> <P>&nbsp;</P> </LI> <LI><STRONG>Network Availability (ICMP)</STRONG> is missing from the available monitor types in Classic Settings&gt; Web and Mobile monitoring&gt; Private Synthetic locations&gt; Edit location.<BR /><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="HannahM_1-1778600513267.png" style="width: 999px;"><img src="https://community.dynatrace.com/t5/image/serverpage/image-id/33128iDAF7E70E38BAABD4/image-size/large?v=v2&amp;px=999" role="button" title="HannahM_1-1778600513267.png" alt="HannahM_1-1778600513267.png" /></span></LI> <LI>The private location marked as <STRONG>Not supported</STRONG>, with an message indicating that the <STRONG>Location is not configured to execute this type of monitor</STRONG>.<BR /><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="HannahM_2-1778600737090.png" style="width: 400px;"><img src="https://community.dynatrace.com/t5/image/serverpage/image-id/33129iE964CBFD9A4EC72B/image-size/medium?v=v2&amp;px=400" role="button" title="HannahM_2-1778600737090.png" alt="HannahM_2-1778600737090.png" /></span></LI> <LI>ActiveGate diagnostic logs, <A href="https://community.dynatrace.com/t5/Troubleshooting/Useful-Synthetic-ActiveGate-logs/ta-p/214478#toc-hId-1672748750" target="_self">vuc-status.log</A>, show that <STRONG style="font-family: inherit;">ICMP is marked as unavailable</STRONG><SPAN><SPAN>, even though other Synthetic capabilities (Browser, HTTP, TCP, DNS) are operational.&nbsp;<BR /></SPAN></SPAN><LI-CODE lang="markup">2026-05-12T14:10:22,211Z [DiagnosticResultsHolder] multi-protocol = `DiagnosticResultsChangedEvent[moduleName=MULTIPROTOCOL, diagnosticCasesResult=DiagnosticCasesResult[isOperational=true, cases={MULTIPROTOCOL_TCP=DiagnosticCaseDetail[isAvailable=true], MULTIPROTOCOL_DNS=DiagnosticCaseDetail[isAvailable=true], MULTIPROTOCOL_ICMP=DiagnosticCaseDetail[isAvailable=false]}]]`</LI-CODE> <P>&nbsp;</P> </LI> </UL> <H2>Troubleshooting steps</H2> <UL> <LI>Review <STRONG>ActiveGate diagnostic results</STRONG>&nbsp; in the <A href="https://community.dynatrace.com/t5/Troubleshooting/Useful-Synthetic-ActiveGate-logs/ta-p/214478#toc-hId-1672748750" target="_blank" rel="noopener">vuc-status.log</A>&nbsp;to confirm whether ICMP is reported as available or not.<BR />MULTIPROTOCOL_ICMP=DiagnosticCaseDetail[isAvailable=false]<BR /><LI-CODE lang="markup">2026-05-12T14:10:22,211Z [DiagnosticResultsHolder] multi-protocol = `DiagnosticResultsChangedEvent[moduleName=MULTIPROTOCOL, diagnosticCasesResult=DiagnosticCasesResult[isOperational=true, cases={MULTIPROTOCOL_TCP=DiagnosticCaseDetail[isAvailable=true], MULTIPROTOCOL_DNS=DiagnosticCaseDetail[isAvailable=true], MULTIPROTOCOL_ICMP=DiagnosticCaseDetail[isAvailable=false]}]]`​</LI-CODE></LI> <LI>Verify whether the <STRONG><CODE>ping</CODE> command is present and executable</STRONG> on the ActiveGate host operating system.</LI> <LI>Confirm that the operating system and environment allow ICMP execution at the system level.</LI> <LI>Confirm that ping to localhost is allowed, this the test used by the ActiveGate to confirm that ping is allowed.&nbsp;<BR /><LI-CODE lang="markup">sudo -H -u dtuserag bash -c 'ping -c 1 -s 32 -W 1 -i 0.2 127.0.0.1'​</LI-CODE></LI> </UL> <P>These checks help determine whether the limitation is related to the Dynatrace configuration or to <STRONG>host-level ICMP support</STRONG>.</P> <H2>&nbsp;</H2> <H2>Resolution</H2> <P><STRONG>ICMP availability in a private Synthetic location depends on the underlying host’s ability to execute ICMP (ping) operations</STRONG>.</P> <P>If ICMP is not enabled or available on the ActiveGate host, including to localhost:</P> <UL> <LI>Dynatrace will mark ICMP as <STRONG>unavailable</STRONG> in diagnostic results.</LI> <LI>The private location will not support <STRONG>ICMP (NAM) monitors</STRONG>, even though other Synthetic monitor types are available.</LI> </UL> <P>Ensuring that the host operating system supports ICMP is a <STRONG>prerequisite</STRONG> for enabling ICMP-based Network Availability Monitoring from private Synthetic locations.&nbsp;</P> <P>For containerized synthetic-enabled ActiveGates, additional permissions are required for running ICMP tests. The details can be found <A href="https://docs.dynatrace.com/docs/shortlink/containerized-locations#nam-monitors-on-containerized-locations" target="_self">here</A>.</P> <P>&nbsp;</P> <H3>After resolving the cause of the failure</H3> <DIV> <DIV class="paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol">After resolving the cause of the failure, restart the Synthetic module:</DIV> <UL> <LI class="___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf"> <DIV class="paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol"><STRONG>Linux:</STRONG><BR /><CODE>systemctl restart vuc.service</CODE></DIV> </LI> <LI class="___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf"> <DIV class="paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol"><STRONG>Windows:</STRONG><BR />Restart the <STRONG>Dynatrace Synthetic</STRONG> service.</DIV> </LI> </UL> </DIV> <P>&nbsp;</P> <H2>What’s next</H2> <P><SPAN>If none of the previous steps resolved the issue, open a chat and provide the Support Archive from the ActiveGate with the troubleshooting steps you have already completed.</SPAN></P> <P>&nbsp;</P> <H3>Related reading</H3> <P>&nbsp;<span class="lia-unicode-emoji" title=":open_book:">📖</span>&nbsp; <A href="https://docs.dynatrace.com/docs/observe/digital-experience/synthetic-on-grail/synthetic-app/private-locations/manage-private-locations#health-status" target="_self">Manage Private locations</A></P> <DIV> <P><span class="lia-unicode-emoji" title=":open_book:">📖</span>&nbsp; <A href="https://docs.dynatrace.com/docs/observe/digital-experience/synthetic-on-grail/synthetic-app/private-locations/requirements-for-private-synthetic#operating-system-requirements" target="_blank" rel="noopener">Requirements for private locations</A></P> </DIV> <P><span class="lia-unicode-emoji" title=":open_book:">📖</span>&nbsp; <A href="https://docs.dynatrace.com/docs/shortlink/containerized-locations#nam-monitors-on-containerized-locations" target="_blank" rel="noopener">NAM monitors in containerized locations</A></P> <P><span class="lia-unicode-emoji" title=":open_book:">📖</span>&nbsp; <A href="https://community.dynatrace.com/t5/Troubleshooting/Synthetic-Troubleshooting-Map/ta-p/250426" target="_blank" rel="noopener">Synthetic troubleshooting map</A></P> </DIV> Wed, 13 May 2026 09:52:38 GMT HannahM 2026-05-13T09:52:38Z https://community.dynatrace.com/t5/Troubleshooting/Private-Synthetic-Location-Not-Available-for-ICMP-NAM-Monitors/ta-p/299368 <P><LI-TOC indent="15" liststyle="disc" maxheadinglevel="2"></LI-TOC></P> <DIV class="lia-message-template-content-zone"> <P>*<EM>Use a table of contents for longer articles.&nbsp;</EM></P> <H1>Summary</H1> <P><EM>*This is a mandatory section.</EM></P> <P><EM>Short description of which part of the Dynatrace platform the article refers to and what kind of problem it will help resolve / task it will describe.</EM></P> <P>&nbsp;</P> <H1>Problem</H1> <P><EM>*This is a mandatory section.</EM></P> <P><EM>Provide a precise description of the problem / task to be described.</EM></P> <P>&nbsp;</P> <H1>Troubleshooting steps</H1> <P><EM>*This section can be omitted.</EM></P> <P>&nbsp;</P> <H1>Resolution</H1> <P><EM>*This section can be omitted for ticket‑creation articles.</EM></P> <H1>What's next</H1> <P><EM>*This is a mandatory section.</EM></P> </DIV> Wed, 13 May 2026 09:52:38 GMT https://community.dynatrace.com/t5/Troubleshooting/Private-Synthetic-Location-Not-Available-for-ICMP-NAM-Monitors/ta-p/299368 HannahM 2026-05-13T09:52:38Z https://community.dynatrace.com/t5/Troubleshooting/Private-Synthetic-Location-Not-Available-for-ICMP-NAM-Monitors/tac-p/299419#M1110 <P>Thank you!&nbsp;<img class="lia-deferred-image lia-image-emoji" src="https://community.dynatrace.com/html/@9BD876A77FEF3D5EF4BC972CF8A97CB1/images/emoticons/take_my_money.png" alt=":take_my_money:" title=":take_my_money:" /></P> Wed, 13 May 2026 12:56:49 GMT https://community.dynatrace.com/t5/Troubleshooting/Private-Synthetic-Location-Not-Available-for-ICMP-NAM-Monitors/tac-p/299419#M1110 AntonPineiro 2026-05-13T12:56:49Z