High WAN Usage

[manjotsc]

My Internet goes down suddenly and WAN bandwidth usage to high, My internet plan 120/20 and it kills my internet connection.

[freska99]

Any chance you were running some sort of multicast application before it went down? Another possibility is it might be a DoS Attack. Has it happened before and if so how long does it last for?

What I would do in your case is try to take a tcpdump packet grab of the WAN interface. A small sample would suffice to determine what kind of traffic is causing this.

[manjotsc]

@freska99 I'll keep an eye for next time it happens, I am pretty sure it is going happen again, because It had happend to me, couple time.

Thanks.