This looks normal to me.
There are no DNS events in the logs you posted, only DHCP and PPP.
DHCP gives IP addresses for the MAC addresses (the 12 hexadecimal digits separated by a colon) it gets requests for.
PPP is what your router/modem uses to connect to your ISP. Remark that your username is showing in entry 397.
The 1970 date means that your router had not yet synched with a time service.
A lot of systems store the time in Unix format. Unix format counts the numbers of seconds since 1/1/1970 00:00:00 UTC.
So when a device that uses Unix time starts and its clock is 0, it will display 1/1/1970 ... as timestamps.
Edited by Didier Stevens, 27 December 2016 - 05:00 PM.
SANS ISC Handler
Microsoft MVP 2011-2016 Consumer Security, Windows Insider MVP 2016-2018
If you send me messages, per Bleeping Computer's Forum policy, I will not engage in a conversation, but try to answer your question in the relevant forum post. If you don't want this, don't send me messages.
Stevens' law: "As an online security discussion grows longer, the probability of a reference to BadUSB approaches 1.0"