# Error: listen EADDRNOTAVAIL: address not available 192.168.0.30:502

**URL:** <https://discourse.nodered.org/t/error-listen-eaddrnotavail-address-not-available-192-168-0-30-502/48885>\
**Category:** General\
**Created:** [25 July 2021 16:24 UTC](https://discourse.nodered.org/t/error-listen-eaddrnotavail-address-not-available-192-168-0-30-502/48885 "2021-07-25T16:24:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jasrob222](https://avatars.discourse-cdn.com/v4/letter/j/91b2a8/32.png) [@jasrob222](https://discourse.nodered.org/u/jasrob222)\
**Post date:** [25 July 2021 16:24 UTC](https://discourse.nodered.org/t/error-listen-eaddrnotavail-address-not-available-192-168-0-30-502/48885/1 "2021-07-25T16:24:40Z")

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When I start node-red it wont run it gives me this error:

25 Jul 10:19:14 - [info] Server now running at [http://127.0.0.1:1880/](http://127.0.0.1:1880/)  
25 Jul 10:19:14 - [info] Starting flows  
25 Jul 10:19:15 - [info] Started flows  
25 Jul 10:19:15 - [red] Uncaught Exception:  
25 Jul 10:19:15 - Error: listen EADDRNOTAVAIL: address not available 192.168.0.30:502  
at Server.setupListenHandle [as \_listen2] (net.js:1299:21)  
at listenInCluster (net.js:1364:12)  
at doListen (net.js:1501:7)  
at processTicksAndRejections (internal/process/task\_queues.js:85:21)

It started doing this after I used the modbus sever node.

PLEASE HELP!!!!!

Thanks.

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [25 July 2021 16:30 UTC](https://discourse.nodered.org/t/error-listen-eaddrnotavail-address-not-available-192-168-0-30-502/48885/2 "2021-07-25T16:30:51Z")

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Looks like a bug that should be reported with the modbus node - it should never cause a crash like that.

You can start Node-RED in safe mode using `node-red --safe`. That will start the runtime without running the flows. You'll be able to edit them and remove/fix the modbus configuration.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [23 September 2021 16:31 UTC](https://discourse.nodered.org/t/error-listen-eaddrnotavail-address-not-available-192-168-0-30-502/48885/3 "2021-09-23T16:31:47Z")

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