Talk:Tutorial: Troubleshooting/@comment-26822774-20150826122632/@comment-26091666-20150827021236

@Kuropentacle Packet loss of a 100% would definitely be a firewall somewhere on the network. A ping tool is generally unable to offer much insight and depending on how the firewall is configured traceroute tool is even more limited to offering information at that.

I would recommend you to try out getting Layer Four Traceroute (LFT) as it generally has the ability to bypass firewalls which generally blocks ping packets or technically known as ICMP.

For ISP issues, it is first best to check out if their website for instance would indicate network issues/maintenance on a set day/duration. Normally a decent ISP would offer these information upfront to their customers. If nothing was directly related to your issue and that if for instance you are getting poor connectivity at random times during the day whilst playing kancolle, you might as well try and tell them similar to what you told me. The issue really would be categorised as unable to connect to certain server/IP addresses.

Do note however that ISP level 1 tech. support will run you all sorts of usual hoops such as restarting your modem/router, using wired (as opposed to wireless), etc. What you could do is provided that using LFT tool for instance you found there is a node that is either lagging badly (with high latency) or that it appears to be offline (when it is supposed to be active every other time during LFT tests) you can escalate the issue to level 2 tech. support and explain to them that you have done all the usual things however you found that there is a node that is intermittently going bad and/or laggy.

Other tools/sites you might want to try/visit are traceroute/looking glass servers which are usually freely available on the web and gives a technical analysis for tracking down connection issues.

I have a brief blog entry on networking which you may want to have a look at. It may help you deepen your understanding of the network issues that can occur should you be keen and it is the same link as I have posted in the article above; []