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UTM 9 - Error UTM blocked a computer to navigate

Hi, I'm here to try resolve my problem... we have the UTM 9, and today we have found the second computer blocked by UTM automatically (a HP AIO PC and a PC with a ASUS MotherBoard and Lan onboard). So we have asked the support why this happened, the answer was that Sophos UTM 9 have a internal software who search for tries of duplicate a existent Mac Address, and block automatically this mac. So, we asked for the log were say about this software, and he say that is automatic and don't have one. This information is right?

The problem isn't in the firewall configuration and also we don't have any policy of block mac address.

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0 BarryG over 11 years ago

Does the computer have its gateway set to the UTM's internal address?

Does anything appear for that computer in the firewall or IPS logs on the UTM?

Barry
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0 BarryG over 11 years ago

Does the computer have its gateway set to the UTM's internal address?

Does anything appear for that computer in the firewall or IPS logs on the UTM?

Barry
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0 Derick Maruyama over 11 years ago in reply to BarryG

Hi, yes our gateway is the UTM, but the DHCP isn't active for DHCP we use our AD Server. (IP UTM 128.1.10.109)

I'm sending some files to you, the first print doesn't show us anything about the machine blocked (IP 128.1.50.178) and even the IPS logs doesn't show anything.

att,
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