Private Home Network Lag


Try to reset the router and call your internet provider, if that doesn't help. It seems to be his problem.
 
Do you have 2 routers in your house. The 192.168.1.1 is likely your router but is the 10.125.64.1 yours or something outside your house.

There is likely some issue with the connection between the 192.168.1.1 and the 10.125.64.1 device. It appears to have a over utilization issue since you can appear to get data though at faster rates at random times since hops further into the trace are better at times.