# Kibana throwing errors behind a load balancer

**URL:** <https://discuss.elastic.co/t/kibana-throwing-errors-behind-a-load-balancer/214567>\
**Category:** Kibana\
**Created:** [January 10, 2020, 9:06am UTC](https://discuss.elastic.co/t/kibana-throwing-errors-behind-a-load-balancer/214567 "2020-01-10T09:06:05Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![gborg](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gborg/32/58934_2.png) [@gborg](https://discuss.elastic.co/u/gborg)\
**Post date:** [January 10, 2020, 9:06am UTC](https://discuss.elastic.co/t/kibana-throwing-errors-behind-a-load-balancer/214567/1 "2020-01-10T09:06:05Z")

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Hello, I have been having some issues where Kibana is throwing me "clear your session" errors

User enter's Kibana, loads a dashboard, a few minutes pass, error occurs

Setup:

```
F5 hardware load balancer ----- --------- > Server 1: Apache reverse proxy to localhost --- > Kibana 
                                         |
                                         | ______ > Server 2: Apache reverse proxy to localhost --- > Kibana 

```

Full error:

Something went wrong  
Try refreshing the page. If that doesn't work, go back to the previous page or clear your session data.

Clear your session

Go back  
Courier fetch: Cannot read property 'timed\_out' of null  
Version: 7.5.0  
Build: 27521  
TypeError: Cannot read property 'timed\_out' of null  
at [https://myurl/bundles/commons.bundle.js:3:4896083](https://myurl/bundles/commons.bundle.js:3:4896083)  
at Function.\_module.service.Promise.try ([https://myurl/bundles/commons.bundle.js:3:2501410](https://myurl/bundles/commons.bundle.js:3:2501410))  
at [https://myurl/bundles/commons.bundle.js:3:2500784](https://myurl/bundles/commons.bundle.js:3:2500784)  
at Array.map ()  
at Function.\_module.service.Promise.map ([https://myurl/bundles/commons.bundle.js:3:2500741](https://myurl/bundles/commons.bundle.js:3:2500741))  
at callResponseHandlers ([https://myurl/bundles/commons.bundle.js:3:4895925](https://myurl/bundles/commons.bundle.js:3:4895925))  
at [https://myurl/bundles/commons.bundle.js:3:4878286](https://myurl/bundles/commons.bundle.js:3:4878286)  
at processQueue ([https://myurl/built\_assets/dlls/vendors.bundle.dll.js:435:204190](https://myurl/built_assets/dlls/vendors.bundle.dll.js:435:204190))  
at [https://myurl/built\_assets/dlls/vendors.bundle.dll.js:435:205154](https://myurl/built_assets/dlls/vendors.bundle.dll.js:435:205154)  
at Scope.$digest ([https://myurl/built\_assets/dlls/vendors.bundle.dll.js:435:215159](https://myurl/built_assets/dlls/vendors.bundle.dll.js:435:215159))

---

<div class="post-metadata">

**Author:** ![Brandon\_Kobel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/brandon_kobel/32/14829_2.png) [@Brandon\_Kobel](https://discuss.elastic.co/u/Brandon_Kobel)\
**Post date:** [February 3, 2020, 3:20pm UTC](https://discuss.elastic.co/t/kibana-throwing-errors-behind-a-load-balancer/214567/3 "2020-02-03T15:20:15Z")

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Hey @gborg, this has been reported a few times and it's generally when a reverse-proxy is configured incorrectly and responds in an incorrect manner. Would you mind capturing a HAR of the network traffic when you see this error in the console? [https://community.box.com/t5/Managing-Content-Troubleshooting/How-to-Generate-Network-Captures-for-Troubleshooting/ta-p/366](https://community.box.com/t5/Managing-Content-Troubleshooting/How-to-Generate-Network-Captures-for-Troubleshooting/ta-p/366) walks you through this process.

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<div class="post-metadata">

**Author:** ![gborg](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gborg/32/58934_2.png) [@gborg](https://discuss.elastic.co/u/gborg)\
**Post date:** [February 10, 2020, 9:20pm UTC](https://discuss.elastic.co/t/kibana-throwing-errors-behind-a-load-balancer/214567/4 "2020-02-10T21:20:00Z")

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Hello

I am currently on vacation, will do so when I'm back

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [March 9, 2020, 9:20pm UTC](https://discuss.elastic.co/t/kibana-throwing-errors-behind-a-load-balancer/214567/5 "2020-03-09T21:20:11Z")

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