If you are facing high latency issues maybe you can try this, at the very least i hope it helps to answer come questions (like what or where is causing the lag):

1. With the game running and while you are experiencing in-game lag, go to windows and run "cmd".

2. type "tracert <ip.address>" and press enter. Where the <ip.address> is the data centre you are playing from.

Gaia - 124.150.157.157
Light - 195.82.50.10
Mana - 124.150.157.156
Elemental - 124.150.157.158
Chaos -195.82.50.9


If done correctly, you will see something like below.

Tracing route to 124.150.157.158 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms router.asus.com
2 2 ms 2 ms 1 ms 1.64.197.124.unknown.m1.com.sg
3 8 ms 1 ms 1 ms 250.246.65.202.unknown.m1.com.sg [202.65.246.250]
4 2 ms 1 ms 1 ms 249.246.65.202.unknown.m1.com.sg [202.65.246.249]
5 2 ms 2 ms 3 ms 144.245.65.202.unknown.m1.com.sg [202.65.245.144]
6 3 ms 2 ms 3 ms 38.246.65.202.unknown.m1.com.sg [202.65.246.38]
7 3 ms 5 ms 6 ms 162.246.65.202.unknown.m1.com.sg [202.65.246.162]
8 4 ms 4 ms 3 ms SNGIPT9165981-SNGIPT9540988.asianetcom.net [61.14.145.189]
9 5 ms 5 ms 4 ms i-92.sgcn-core01.telstraglobal.net [202.84.219.174]
10 83 ms 82 ms 81 ms i-92.sgcn-core01.telstraglobal.net [202.84.219.174]
11 85 ms 82 ms 83 ms i-24251.jtha-core02.telstraglobal.net [202.84.136.25]
12 82 ms 83 ms 82 ms i-24251.jtha-core02.telstraglobal.net [202.84.136.25]
13 81 ms 81 ms 81 ms i-95.jtha01.telstraglobal.net [202.47.216.146]
14 81 ms 82 ms 81 ms squareco.asianetcom.net [203.192.149.210]
15 1053 ms * 1052 ms 61.195.56.133
16 1080 ms 1080 ms 1096 ms 219.117.144.78
17 * 1085 ms * 219.117.144.49
18 1082 ms 1080 ms 1082 ms 219.117.144.29
19 1080 ms 1084 ms 1082 ms 219.117.147.186
20 1080 ms * 1079 ms 124.150.157.158


So from my tracert, i can tell that on line 14 to 15 my ms jumped from 80 to 1000. Meaning that this is likely the cause of the lag. Taking the 2 ip address, I googled out thier locations using https://whatismyipaddress.com/ip-lookup.

Line 14 is a data centre located in Philippines, while line 15 is SE servers.

So what could this mean?
1. For some reason when the signal is sent from Philippines to Japan, there is a major packet loss. Meaning that there maybe an issue with the undersea cables leading from Philippines to Japan.

2. SE server on line 15 is the cause of the the high latency problems for whatever the reason.



However, based on the fact that some of FC members are able to play without lag iy using a VPN I believe that the cause of the high latency is likely 1.