# Duplicate node number error **URL:** \ **Category:** USB Devices\ **Created:** [March 23, 2006, 2:46pm UTC](https://forums.digi.com/t/duplicate-node-number-error/7584 "2006-03-23T14:46:03Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/digi/original/1X/11da31a6a1fbcd03ef21d3f785c317c824009ae2.png) [@system](https://forums.digi.com/u/system)\ **Post date:** [March 23, 2006, 2:46pm UTC](https://forums.digi.com/t/duplicate-node-number-error/7584/1 "2006-03-23T14:46:03Z")
Hello everybody, I have an AccelePort C/X PCI host adapter installed in a ProLiant DL380G4 machine running Windows2000 Pro and Digi drivers v6.0.04.0 installed following the procedure recommended by the manufacturer. Trying to attach a C/CON-16 Concentrator I’m constantly getting “En” duplicate node number error message displayed even though it’s the only concentrator I have. All diagnostic passed, cable and terminator have been checked. Any idea would be appreciated. Nicu ---
**Author:** ![userid0](https://avatars.discourse-cdn.com/v4/letter/u/f6c823/32.png) [@userid0](https://forums.digi.com/u/userid0)\ **Post date:** [March 23, 2006, 3:00pm UTC](https://forums.digi.com/t/duplicate-node-number-error/7584/2 "2006-03-23T15:00:33Z")
Sounds as though the node number needs to be configured for “1n”. Try the steps in the following article: [http://search2.digi.com/support/kbaseresultdetl.jsp?id=101](http://search2.digi.com/support/kbaseresultdetl.jsp?id=101) ---
**Author:** ![nilie](https://avatars.discourse-cdn.com/v4/letter/n/858c86/32.png) [@nilie](https://forums.digi.com/u/nilie)\ **Post date:** [March 23, 2006, 6:03pm UTC](https://forums.digi.com/t/duplicate-node-number-error/7584/3 "2006-03-23T18:03:01Z")
I’ve already checked that and I did set the node number to 1n even though it is set to that value by default. Still not working.