# Host or monitoring unavailable

**URL:** <https://community.dynatrace.com/t/host-or-monitoring-unavailable/44779>\
**Category:** Alerting\
**Tags:** problem-detection, hosts-classic, problems-classic\
**Created:** [March 21, 2024, 9:30am UTC](https://community.dynatrace.com/t/host-or-monitoring-unavailable/44779 "2024-03-21T09:30:12Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Athira](https://avatars.discourse-cdn.com/v4/letter/a/898d66/32.png) [@Athira](https://community.dynatrace.com/u/Athira)\
**Post date:** [March 21, 2024, 9:30am UTC](https://community.dynatrace.com/t/host-or-monitoring-unavailable/44779/1 "2024-03-21T09:30:12Z")

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we have Oneagent monitoring on my servers in Full stack mode. recently we have been observing&nbsp;&nbsp; **Host or monitoring unavailable** &nbsp;&nbsp;&nbsp;alerts though i can see my host is available and running. i went through the docs where i found the alerts can occur if there is Network connection loss.

If there is Network connection loss to the monitored host , how can we identify this, and what fix/solution can be applied to avoid the Network connection loss

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**Author:** ![christian\_wegha](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/christian_wegha/32/8816_2.png) [@christian\_wegha](https://community.dynatrace.com/u/christian_wegha)\
**Post date:** [March 21, 2024, 10:11am UTC](https://community.dynatrace.com/t/host-or-monitoring-unavailable/44779/2 "2024-03-21T10:11:33Z")

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Hello Athira,

which operating system and version of the OneAgent are you using here?

Have you tried a deinstallation and installation of the OneAgent already?

Regards,

Christian

PS: I cannot open your link.

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**Author:** ![mizso74](https://avatars.discourse-cdn.com/v4/letter/m/f05b48/32.png) [@mizso74](https://community.dynatrace.com/u/mizso74)\
**Post date:** [March 21, 2024, 4:52pm UTC](https://community.dynatrace.com/t/host-or-monitoring-unavailable/44779/3 "2024-03-21T16:52:07Z")

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Hi&nbsp;[@Athira](https://community.dynatrace.com/user/67084),

You should see some gaps on any collected metrics at the affected host. In case of high CPU consumption / CPU saturation maybe OA did not have any CPU time and could not collect and transfer the monitoring data…

 ![Mizs_1-1711039714683.png](https://global.discourse-cdn.com/dynatrace/original/2X/8/8115404cd414946a178f0e5a765068d263831193.png)

I hope it helps.

Best regards,

Mizső