# After installation, execution nodes state = state-unknown

**URL:** <https://community.openpbs.org/t/after-installation-execution-nodes-state-state-unknown/3990>\
**Category:** Users/Site Administrators\
**Created:** [September 16, 2024, 6:19pm UTC](https://community.openpbs.org/t/after-installation-execution-nodes-state-state-unknown/3990 "2024-09-16T18:19:14Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![boboshaq](https://avatars.discourse-cdn.com/v4/letter/b/bc8723/32.png) [@boboshaq](https://community.openpbs.org/u/boboshaq)\
**Post date:** [October 10, 2024, 12:36pm UTC](https://community.openpbs.org/t/after-installation-execution-nodes-state-state-unknown/3990/3 "2024-10-10T12:36:16Z")

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Also check your network settings:

> [@State-unknown,down](https://community.openpbs.org/t/state-unknown-down/2681/18):
>
> Hi, I resolved this issue. Problem was in switches configuration. It concerns MTU. When You set MTU 9000 on interfaces, on switches You need to set max accept value of MTU. Regards!

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_[View the full topic](https://community.openpbs.org/t/after-installation-execution-nodes-state-state-unknown/3990)._