KSC 14 can't add some device

[Bagos Rinaldi]

Hallo Everyone
I have an issue where I can't add some device.

My KSC Server

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Software:
KSC 14.2
OS Ubuntu 20.04
Database MariaDB 10.11.3

Hardware:
2 Core CPU
4 GB RAM
32 GB Storage

192.168.1.253

when adding device getting error

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another Subnet
NAS Server


localhost
KSC

but can add some other windows and linux hosts

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Gateway
192.168.1.31
Ubuntu 20.04

Windows Server 2012
192.168.1.245

and I've made sure all networks have no problems, because I've done telnet on servers that can and can't

thank in advance

[DonKid]

Please, open a ticket here.