AFAIK Blizzard are making/ have made changes to this?
What do your traceroutes look like?
AFRIHOST
C:\Users\Ryan>tracert 37.244.63.46
Tracing route to 37.244.63.46 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms router.asus.com [192.168.1.1]
2 * * * Request timed out.
3 28 ms 26 ms 28 ms cpt-tx2.ip.adsl.co.za [169.1.5.81]
4 28 ms 26 ms 27 ms cpt-rx2.ip.adsl.co.za [169.1.5.82]
5 21 ms 20 ms 19 ms cpt-net1.ip.adsl.co.za [169.1.5.128]
6 27 ms 27 ms 32 ms 41.164.52.40
7 28 ms 27 ms 31 ms if-ae-7-0.tcore2.KLT-Cape-Town.as6453.net [41.206.165.25]
8 233 ms 236 ms 236 ms if-ae-2-2.tcore1.KLT-Cape-Town.as6453.net [41.206.164.253]
9 255 ms 251 ms 252 ms if-ae-5-40.tcore2.PV9-Lisbon.as6453.net [80.231.159.89]
10 238 ms 238 ms 238 ms if-ae-2-2.tcore1.PV9-Lisbon.as6453.net [80.231.158.5]
11 247 ms 260 ms 247 ms if-ae-1-3.tcore1.SV8-Highbridge.as6453.net [80.231.158.30]
12 249 ms 249 ms 250 ms if-ae-6-2.thar1.NJY-Newark.as6453.net [80.231.138.18]
13 236 ms 236 ms 236 ms if-ae-1-3.thar2.NJY-Newark.as6453.net [216.6.57.2]
14 238 ms 238 ms 239 ms if-ae-14-14.tcore2.NTO-New-York.as6453.net [66.198.111.126]
15 235 ms 235 ms 235 ms if-ae-12-2.tcore1.N75-New-York.as6453.net [66.110.96.5]
16 249 ms 249 ms 249 ms 66.110.96.138
17 238 ms 241 ms 238 ms hu-1-3-0-9-cr02.newyork.ny.ibone.comcast.net [68.86.84.245]
18 236 ms 235 ms 235 ms be-33-pe01.60hudson.ny.ibone.comcast.net [68.86.84.78]
19 249 ms 249 ms 249 ms as30036.350ecermak.il.ibone.comcast.net [173.167.57.150]
20 258 ms 258 ms 259 ms 37.244.3.33
21 256 ms 257 ms 257 ms 24.105.31.25
22
257 ms 257 ms 257 ms 24.105.31.18
23 252 ms 251 ms 251 ms 24.105.31.34
24 265 ms 265 ms 265 ms 37.244.9.101
25 258 ms 258 ms 259 ms 185.60.115.155
26 250 ms 250 ms 249 ms 37.244.63.46
WEB AFRICA
C:\Users\Ryan>tracert 37.244.63.46
Tracing route to 37.244.63.46 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms router.asus.com [192.168.1.1]
2 * * * Request timed out.
3 42 ms 36 ms 46 ms cdsl1-ctn-vl2376-ipc.ip.isnet.net [196.38.72.206]
4 34 ms 38 ms 36 ms cdsl1-ctn-vl2376.ip.isnet.net [196.38.72.205]
5 35 ms 36 ms 48 ms 196.35.115.128
6 37 ms 30 ms 38 ms mi-za-cpt-p8-te0-7-0-0.ip.isnet.net [168.209.2.13]
7 202 ms 209 ms 218 ms core2b-dock-ge-0-4-2-1.ip.isnet.net [168.209.201.10]
8 * * * Request timed out.
9 206 ms 202 ms 204 ms 37.244.11.33
10
187 ms 186 ms 188 ms 24.105.31.18
11 200 ms 198 ms 205 ms 37.244.9.103
12 212 ms 209 ms 208 ms 185.60.115.161
13 213 ms 212 ms 214 ms 37.244.63.46
Don't know about you..but looks like it has nothing to do with Blizzard?