# KNX write error by the node-red-contrib-knx node
**URL:** https://discourse.nodered.org/t/knx-write-error-by-the-node-red-contrib-knx-node/7798
**Category:** General
**Created:** [10 February 2019 11:10 UTC](https://discourse.nodered.org/t/knx-write-error-by-the-node-red-contrib-knx-node/7798 "2019-02-10T11:10:12Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Rulevalley](https://discourse.nodered.org/u/Rulevalley)
#### Post date: [10 February 2019 11:10 UTC](https://discourse.nodered.org/t/knx-write-error-by-the-node-red-contrib-knx-node/7798/1 "2019-02-10T11:10:12Z")
Hi.
I have a RPI3B and a KNX USB adaptor.
Have installed a KNXD from micheals tech blog
> **[Raspberry Pi: EIB/KNX IP Gateway and Router with knxd](https://michlstechblog.info/blog/raspberry-pi-eibknx-ip-gateway-and-router-with-knxd/#comment-2665)**
>
> Hi,
>
> in my previous posts EIB/KNX Router with an USB Interface and KNX/EIB Router with a TPUART module I described how to use a Raspberry PI as EIB/KNX Router with eibd.
>
> eibd is no longer in development so I decided to give knxd, a fork of eibd, a...
Issue is that first message i Try to write to the bus, gives an error and connection timeout.
> Read failed: Connection reset by peer
Google could not help me, but I found a strange thing in the telegrams when i listen in on the traffic on the bus.
> LPDU: BC 11 04 06 00 E1 00 80 31 :L\_Data low from 1.1.4 to 0/6/0 hops: 06 T\_DATA\_XXX\_REQ A\_GroupValue\_Write (small) 00
> LPDU: BC 11 85 06 04 F1 00 81 A5 :L\_Data low from 1.1.133 to 0/6/4 hops: 07 T\_DATA\_XXX\_REQ A\_GroupValue\_Write (small) 01
> Read failed: Connection reset by peer
> root@raspberrypi:/#
I see that the message get written to the bus, but with a different hops code ? What is this code, and where can i set this ?
Is this a known issue ? does anyone have a solution ?. Is it the problem ?
And even more strange, I managed to get this working for some messages, but now i will not operate at all.
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [10 February 2019 11:27 UTC](https://discourse.nodered.org/t/knx-write-error-by-the-node-red-contrib-knx-node/7798/2 "2019-02-10T11:27:33Z")
Is there a reason why you are running node-red as root? Generally that is not necessary and is considered a security risk as a deviant node or crash could write all over your operating system. Whether it might give problems for this node I don't know.
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### Author:  [@ukmoose](https://discourse.nodered.org/u/ukmoose)
#### Post date: [10 February 2019 12:14 UTC](https://discourse.nodered.org/t/knx-write-error-by-the-node-red-contrib-knx-node/7798/3 "2019-02-10T12:14:34Z")
Given that the blog you linked to isn't a node-RED node, how are you linking to Node-RED?
Are you sure that it's a problem with Node-RED and not the knxd server you've installed?
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### Author:  [@Rulevalley](https://discourse.nodered.org/u/Rulevalley)
#### Post date: [14 February 2019 13:02 UTC](https://discourse.nodered.org/t/knx-write-error-by-the-node-red-contrib-knx-node/7798/4 "2019-02-14T13:02:15Z")
It`s running as root beacause I dont know better. I will look into it 😉
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### Author:  [@Rulevalley](https://discourse.nodered.org/u/Rulevalley)
#### Post date: [14 February 2019 13:06 UTC](https://discourse.nodered.org/t/knx-write-error-by-the-node-red-contrib-knx-node/7798/5 "2019-02-14T13:06:19Z")
I am trying to figure this out the best way I can.
I am not sure off anything right now, I`m new to the whole thing.
But I found a way to avoid this issue. Because I was watching the buss activity and running Node red at the same time, they seem to fight over the same resources. When I do not view the bus activity at the same time as Node-red is running, It all works fine 🙂
Thanks for youre interest in helping me .