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Modem is shown as offline in Analysis page and shows IP of range that is not configured anywhere (not in range of any pool of any CMTS).



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  1. The reason for this is most of the time an erroneous DNS setup. Domain Name Resolving should be done by the own DNS server (that also has forwarding Name Servers configured). /etc/resolv.conf therefore should be empty.

    You can also check what IP was assigned by DHCP in the Log panel of the Analysis page - e.g.:

    Apr 11 03:30:27 nmsprime dhcpd: DHCPACK on to ab:cd:ef:ab:cd:ef via eth0.100 

    If the IP the server tries to ping differs from in this case, it must be a DNS issue.