ACK DHCP error

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  • volko30
    Aspiring Member
    • Jun 2020
    • 1

    ACK DHCP error

    Hello.


    After clearing the phone (1608 or 9611g) it restarts, discovers Ethernet and on 0 second displays ACK error and reboots after 24 seconds.
    If I set VLAN 2 in it, it gets an IP address successfully from DHCP in VLAN 2.


    VLAN 1 is default, VLAN 2 is voice.
    Access switches have untagged 1 and tagged 2 VLANs, also tagged 1 and 2 on ports, connected to other switches.
    DHCP windows physical server port is access VLAN 1 only. It's switch is also a DHCP in VLAN 2 and has tagged 1 and 2 VLAN on port, connected to the other switches.
    On windows DHCP option 242 string L2Q=1,L2QVLAN=2 is set.

    There is no other DHCP server in LAN, there is only one DHCP relay.
    Last edited by volko30; 06-26-2020, 02:18 AM.
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