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Koen Wuyts

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I'm have a problem with the DHCP server. I've setup an IP range from 192.168.1.3 until 192.168.1.254.

I'm connecting all my devices trough a Sisco SRW 2024 switch.

Some devices I have on automatic mode, which mean they get their IP form the DHCP, some other devices I've assign a reserved address.

Now the problem is that some devices get a wrong IP address...

For instance I have a Synology NAS, and it has been setup the get the IP address from the DHCP server automatically. I've assigned it a fixed address via the MAC address (192.168.1.6) but it always gets address 192.168.1.14. Also address 192.168.1.14 does not show up in my DHCP-lease list. Maybe because there is a conflicting MAC address (reseved on IP 192.168.1.6).

Also the switch itself is not show. It should automatically be available on IP 192.168.1.254, but this is also not available...

Now from my computer I can access the NAS on 192.168.1.14, I can even open up the managment console, but again this activity is not visible in Kerio via Active connections.

I have no idea what the problem is, anyone?

Thanks,
Koen
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Radek PECH

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It looks like another DHCP is running in the network assigning addresses instead of the firewall.
Check all devices in network (switch, NAS, WiFi AP, etc.) that their DHCP server is disabled or switched to Client mode.
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Koen Wuyts

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I think the problem was related to some bad cables Embarassed
I've changed some cable and most of it works now.
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