Hi!

So I've been recieving really bad lag/delay in group content making the game pretty much unplayable. I checked with traceroute to my Data Center (Chaos) and this is what I saw:
Tracing route to 80-239-145-6.teliacarrier-cust.com [80.239.145.6]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms OpenWrt.home [192.168.1.1]
2 2 ms 2 ms 2 ms 145.236.238.253
3 3 ms 3 ms 2 ms 81.183.3.38
4 3 ms 3 ms 2 ms 81.183.3.51
5 * * * Request timed out.
6 6 ms 6 ms 6 ms 87.128.239.253
7 55 ms 53 ms 47 ms win-bb4-link.ip.twelve99.net [62.115.114.182]
8 * * 124 ms ffm-bb2-link.ip.twelve99.net [62.115.138.22]
9 123 ms 118 ms 102 ms ffm-b11-link.ip.twelve99.net [62.115.124.119]
10 122 ms * * squareenix-svc079850-lag003672.c.telia.net [80.239.195.85]
11 115 ms * 114 ms 80-239-145-241.teliacarrier-cust.com [80.239.145.241]
12 118 ms 120 ms 119 ms 80-239-145-6.teliacarrier-cust.com [80.239.145.6]

You can see the jump in latency highlighted.

Now switch to a VPN:

Tracing route to 80-239-145-6.teliacarrier-cust.com [80.239.145.6]
over a maximum of 30 hops:

1 * * * Request timed out.
2 25 ms 25 ms 25 ms 89.39.107.2
3 25 ms 25 ms 25 ms 109.236.95.228
4 49 ms 27 ms 27 ms 109.236.95.106
5 27 ms 27 ms 27 ms adm-b1-link.ip.twelve99.net [62.115.166.142]
6 27 ms 30 ms 27 ms adm-bb4-link.ip.twelve99.net [62.115.137.64]
7 33 ms 34 ms 33 ms ffm-bb2-link.ip.twelve99.net [62.115.122.201]
8 33 ms 34 ms 33 ms ffm-b11-link.ip.twelve99.net [62.115.124.119]
9 34 ms 35 ms 34 ms squareenix-svc079850-lag003672.c.telia.net [80.239.195.85]
10 * * * Request timed out.
11 33 ms 33 ms 34 ms 80-239-145-6.teliacarrier-cust.com [80.239.145.6]

And it's totally fine, in-game too. So there is some pretty terrible routing problem here.
Please look into this.