# Adding new node failure

**URL:** <https://community.dynatrace.com/t/adding-new-node-failure/21758>\
**Category:** Dynatrace Managed\
**Tags:** installation, dynatrace-managed\
**Created:** [August 30, 2019, 2:10pm UTC](https://community.dynatrace.com/t/adding-new-node-failure/21758 "2019-08-30T14:10:16Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![service\_apms](https://avatars.discourse-cdn.com/v4/letter/s/c4cdca/32.png) [@service\_apms](https://community.dynatrace.com/u/service_apms)\
**Post date:** [August 30, 2019, 2:10pm UTC](https://community.dynatrace.com/t/adding-new-node-failure/21758/1 "2019-08-30T14:10:16Z")

</div>

Hello,

So we are trying to set up our new DYnatrace Interface.

I’ll explain the architecture so you will understand.

We have 3 servers (3 clusters/nodes) each with a primary and a backup IP@

We installed the package on the first server with no problem.

Then we access the interface we add a new cluster and then we tried to install the package on the second server and we had an error message.

**Adding new node failure.**

**Adding new node with ip 10.69.50.12 failed. Reason: Cannot prepare network settings on Dynatrace cluster nodes. Error: Adding IP of this machine (“10.69.50.12”) to cluster node “10.69.50.11” failed.**

The 3 servers can very well communicate with each other so i don’t really understand the problem.

Did anyone have this same problem before ?

Thank you for your answers.

---

<div class="post-metadata">

**Author:** ![Joe\_Hoffman](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/joe_hoffman/32/30752_2.png) [@Joe\_Hoffman](https://community.dynatrace.com/u/Joe_Hoffman)\
**Post date:** [August 30, 2019, 4:02pm UTC](https://community.dynatrace.com/t/adding-new-node-failure/21758/2 "2019-08-30T16:02:28Z")

</div>

Did you verify that all the required ports are open for traffic as required?

[Cluster node ports](https://docs.dynatrace.com/managed/shortlink/managed-network-ports)

---

<div class="post-metadata">

**Author:** ![service\_apms](https://avatars.discourse-cdn.com/v4/letter/s/c4cdca/32.png) [@service\_apms](https://community.dynatrace.com/u/service_apms)\
**Post date:** [September 2, 2019, 9:58am UTC](https://community.dynatrace.com/t/adding-new-node-failure/21758/3 "2019-09-02T09:58:29Z")

</div>

Yes the ports are well open and we can use them to communicate with the MC

---

<div class="post-metadata">

**Author:** ![Bert\_VANDEGAER](https://avatars.discourse-cdn.com/v4/letter/b/bbce88/32.png) [@Bert\_VANDEGAER](https://community.dynatrace.com/u/Bert_VANDEGAER)\
**Post date:** [September 2, 2019, 10:41am UTC](https://community.dynatrace.com/t/adding-new-node-failure/21758/4 "2019-09-02T10:41:17Z")

</div>

Since you mention you have 2 NIC’s, it’s maybe best to force the inter-node communication on the prefered NIC address?

```auto
vi /opt/dynatrace-managed/installer/custom.settings

```

```auto
<server/conf/config.properties><br>[connectivity]<br>bindToNetworkInterface = 10.69.50.12

```

Restart the node and this setting will be permanent.

Hope it works,

Bert