I play from Cape Town, South Africa and since 4.21's release have noticed a massive amount of lag and general unplayableness during the evenings (7PM - 1AM GMT+2)
My ISP is Internet Solutions AND my own ISP that I work for (PCN) and both connections do exactly the same, yet use different routes locally to get overseas.
PCN - Cape Town South Africa
Tracing route to 195.82.50.44 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms 10.13.0.1
2 30 ms 30 ms 33 ms 1.1.1.3
3 34 ms 33 ms 33 ms 6500-access03.pcnetwork.co.za [154.66.205.126]
4 32 ms 33 ms 35 ms 196.6.121.217
5 34 ms 35 ms 36 ms cpt-teraco-sw204-vlan2914.as36874.net [196.41.97.37]
6 34 ms 34 ms 35 ms tr212-cpt-te-2501.borwood.net [217.78.92.241]
7 174 ms 176 ms 171 ms th212-lon-po-wacs.borwood.net [217.78.80.205]
8 175 ms 171 ms 175 ms th202-lon-te-4037.borwood.net [217.78.88.221]
9 176 ms 175 ms 172 ms th201-lon-tg-202.borwood.net [217.78.88.129]
10 175 ms 171 ms 177 ms 213.130.48.253
11 173 ms 173 ms 177 ms ae-0.level3.londen10.uk.bb.gin.ntt.net [129.250.9.126]
12 186 ms 183 ms 184 ms ae-1-3107.edge5.Frankfurt1.Level3.net [4.69.163.18]
13 188 ms 187 ms 183 ms 212.162.4.98
14 189 ms 197 ms 197 ms 195.82.60.29
15 192 ms 184 ms * 195.82.61.14
16 185 ms 188 ms 185 ms 195.82.50.234
17 186 ms 186 ms 186 ms 195.82.50.44
Internet Solutions - Cape Town, South Africa:
C:\Users\Roxas>tracert 195.82.50.44
Tracing route to 195.82.50.44 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms 10.13.0.1
2 * * * Request timed out.
3 19 ms 20 ms 19 ms 196.38.75.121
4 71 ms 71 ms 73 ms 196.38.75.122
5 19 ms 19 ms 19 ms 196.38.77.88
6 81 ms 81 ms 79 ms mi-za-cpt-p7-te0-7-0-0.ip.isnet.net [168.209.2.12]
7 206 ms 206 ms 203 ms core1b-dock-ten-0-4-0-0sub8.ip.isnet.net [168.209.246.65]
8 159 ms 159 ms 174 ms 195.50.122.229
9 222 ms 224 ms 228 ms ae-1-3107.edge5.Frankfurt1.Level3.net [4.69.163.18]
10 169 ms * 169 ms 212.162.4.98
11 167 ms 173 ms 172 ms 195.82.60.29
12 186 ms 176 ms 172 ms 195.82.61.14
13 194 ms 192 ms 188 ms 195.82.50.234
14 202 ms 219 ms 209 ms 195.82.50.44
Trace complete.
Something has changed in the network or routing to Square since 4.2/4.21 and I 100% can say that Barely anything works. Note. I normally have around 145-150MS ping and this has shot up considerably as well! Considering I run my own network at the ISP I work for, I can say that nothing on our routing to Square has changed at all. There is something up with either the servers or routing out from Frankfurt.
All my static members also say the same thing, that the missiles freeze in O7s for seconds at a time at night during our raiding days, so it also isn't just me with some insane amount of latency. They are all in the UK/Poland.