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DHCP Server Not handing out Leases

Hi all,

I am new with Sophos, literally day 3 for this to run on my network.

DHCP Server is behaving very strange.

Sometimes it would work flawlessly and other times it would just stop handing out leases.

I have to turn off the status of the DHCP Range and then when I turn this back on it would hand out leases again.

If I turn the DHCP Server off and back on under System Services --> Services it has got no effect on the leases.

If i manually set static addresses ether on the device or under the dhcp server everything seems fine.

DHCP Server Config



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  • This is a intel i7 with a intel board  self build that I have used running pfSense for somewhat over 3 years.

    Never had any issues. might it be a network card compatibility issue?

    The onboard NIC is used for WAN and then I had a RealTek PCIe GbE card for the LAN..

    I have no idea if it might be a compatibility issue with the RealTek nic.

    That's what I start to suspect.

    All network cables are newly replaced 3 months ago and never had this issue with pfSense.

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