Given the complexity of IT infrastructures today, we at SEH understand that our customers want make sure that their investment in new network solutions is well placed and protected. Our highly qualified staff strives to provide you with the required information, consulting, and technical support at all times! 

Are you experiencing technical issues that need instant attention? Then just send us an e-mail or give us a call. To help resolve your support request as quickly as possible, please include the following information in your inquiry:



  • Model and serial number
  • Firmware/software version installed 
  • UTN Manager version
  • Operating system
  • USB devices / dongles affected by problem
  • Software used to accesss USB device / dongle
  • Switch model and firmware
  • Please provide information of any network changes at time of error
  • Model and serial number
  • Firmware/software version installed
  • Printer model in use
  • Printer drivers installed
  • Does statuspage-printing work via the status button on the print server?
  • Please provide information of any network changes at time of error

Hotline and Email Support

Support hotline:

You can reach us by phone: +49 (0) 521-94226-44 or by email to: support(at)

  • Monday through Thursday, 8:00 am to 4:45 pm (CET/CEST)

  • Friday, 8:00 am to 3:15 pm (CET/CEST)

In addition to the public holidays in North Rhine-Westphalia, we are also closed on the following days:

  • Friday, 19.5.2023
  • Friday, 9.6.2023
  • Monday, 2.10.23
  • Wednesday, 27.12.- until Friday, 29.12.23

Support hotline USA/Canada: 

You can reach us by phone: +1-610-943-3226 or by email to: support(at)

  • Monday through Friday, 9:00 am to 5:00 pm (EST/EDT)

Please also refer to our FAQ and our Knowledge Base articles for further support. 

Where to Buy

SEH has a wide network of distributors and re-sellers worldwide. For a complete list of dealers and re-sellers, both European and worldwide, please visit our "Where to Buy" page. 

Contact Us