Hello Roy, Thank you for contacting the Sophos Community. The dhcp.leases "log" has the following information, when the lease started (given) and when it will end, but I am not sure lease 172.16.16.250 { starts 2 2022/05/31 16:59:51; ends 3 2022/06/01 16:59:51; tstp 3 2022/06/01 16:59:51; cltt 2 2022/05/31 16:59:51; binding state free; hardware ethernet 00:0c:29:f7:b2:32; uid "\001\000\014)\367\2622"; } lease 172.16.16.251 { starts 3 2022/06/22 22:05:46; ends 4 2022/06/23 22:05:46; cltt 3 2022/06/22 22:05:46; binding state active; next binding state free; rewind binding state free; hardware ethernet 00:0c:29:b1:58:03; uid "\001\000\014)\261X\003"; Also if you use the Log Viewer, System and then Add a Filter "Log Comp" >> "is" >> DCHP Server This should give you the Status of the DHCP, Renew, Expire The information in the Log Viewer would rotate so not sure how far back it might go for you. Regards,
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