Backstory
ISP: RCN (philly metro area)
Started: ~1:30am EDT September 2nd
Problems: interment heavy lag spikes where Receiving goes to 0(R:0). Often leads to disconnects
Methodology: used the script outlined
http://forum.square-enix.com/ffxiv/t...=1#post1109184
Results
First I ran ~90 minutes of tracert to the login server a clean one (omitting first 4 steps) looks like the following
5 16 ms 14 ms 12 ms 207.172.19.225
6 12 ms 13 ms 13 ms 207.172.19.205
7 16 ms 17 ms 14 ms 206.126.236.19
8 61 ms 38 ms 35 ms 89.149.185.41
9 27 ms 28 ms 26 ms 173.241.130.106
10 28 ms 28 ms 26 ms 67.205.127.82
11 26 ms 27 ms 26 ms 72.55.128.44
12 25 ms 26 ms 30 ms 184.107.107.176
This tracert ran 184 times meaning each step received 552 pings. Hops 3,4,5,6,9,10,11 never failed. The 7th failed 16 times, 8th failed 14 times and the 12th failed a single time.
Then I thought pinging the login server wasn't going to tell me a whole lot so I went for a server instead ( I believe this particular one is leviathan)
Test ran 181 times for 543 pings per hop. Healthy tracert looks like
5 14 ms 14 ms 13 ms 207.172.19.11
6 13 ms 15 ms 13 ms 207.172.19.9
7 15 ms 15 ms 22 ms 206.126.236.19
8 69 ms 34 ms 35 ms 89.149.185.41
9 36 ms 36 ms 37 ms 216.221.156.110
10 40 ms 38 ms 38 ms 192.34.76.2
11 39 ms 39 ms 40 ms 199.91.189.234
12 39 ms 38 ms 40 ms 199.91.189.21
This time I ran into a lot more hangs. hop 3,4,5,6 were still all clean however 7 had twenty fails, 8 had four, 9 had ten, 10 had eleven fails, 11 had three fails and 12 had eight fails. Also these fails were more clustered (getting 2 in a row).
Conclusion
This is beyond me but I'd certainly be looking into 206.126.236.19 as a potential problem spot. Please do try this on your own and hopefully we can narrow down issue a bit.
184.107.107.176_________1 fail/552
199.91.189.234__________3 fail/543
199.91.189.21___________8 fail/543
216.221.156.110_________10 fail/543
192.34.76.2_____________11 fail/543
89.149.185.41___________18 fail/1095
206.126.236.19__________36 fail/1095
total___________________87 fails
Also while typing this I did a simple ping test(leviathan server) 500 times and had a failure rate of 3%