Lost internet, weird history logs

I lost internet connection  suddenly some devices start to have issue while other devices have no problems. later also my PC lost internet.

When i lost it this appear in norton history many times

rule \Default Block Inbound DHCPV4-In\ rejected  UDP(17)  verkeer met  (0.0.0.0  Port bootpc(68) )

advanced details show

local ip: 255.255.255.255

Localservice: PortbootPS (67)

Externe IP: 0.0.0.0

Externe service: PortbootPC (68)

 

Does this mean the router does some kind of reset? I just worry a bit becaus i find it strange like every device lost internet at a diffrent time. Usually when internet is lost due any issue, everything go's down at the same moment. and i don't have Externe service: PortbootPC (68) message.