Quote Originally Posted by Hustensaft View Post
What responsibility has my ISP? Their service ends past the KDDI network. The issue is very likely in an IP-range SE has ownership off. What exactly should my ISP fight here for? "Hey guys, you might have some issues in your network, my customer, which is also your customer is complaining about it"? Why should i go to my ISP for an issue, when the ownership of the problem lies within SE?
Your ISP will be able to determine if it is truly SE's end or a router on the path to the CPE that contains the IP address range SE "owns."

If it is a router within the path that goes from your CPE to SE's CPE, your ISP can have a case against the other service providers as your service provider's traffic must be able to transmit across other carrier's devices. Some companies have even special contracts and routing paths between the two carriers to hold them accountable (I have helped sign a few of those). Also, counting on the law within the region, the ISP causing the problem could be in violation of the law.

That is why you should reach out to your ISP. It is to hold ISPs accountable.

If it is truly SE's fault, and your ISP can provide proof, then you can send a report ticket to SE via customer service or tech support with that proof. Not to the forums. The forums are not going to really help you.

Again, I am an ISP shill, I work for one, I am telling you what you can do to possibly fix the issue.