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Lantronix UDS1100 / UDS2100 Universal Device Server — Default Password

Default username and password for the Lantronix UDS1100 / UDS2100 Universal Device Server: (blank) / (blank). Learn how to log in and how to change the default credentials.

1/2-port serial-to-Ethernet device servers for RS-232/422/485 equipment. Units manufactured before January 1 2020 ship with a blank password. Post-2020 units use last 8 characters of the Device ID printed on the label.

UsernamePasswordAccessVersion / firmwareNotes
(blank / none)
(blank / none)
Web UIpre-2020 manufacture—

Responsible use

This database lists publicly documented default credentials so administrators can find and change them. Only use these on systems you own or are authorized to test.

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