Just to make sure, can you please whitelist these IP addresses at your host:
52.20.63.25
3.225.202.138
3.217.200.190
54.212.71.227
52.12.170.68
34.218.21.81
3.7.90.144
13.127.240.219
18.139.6.69
18.140.184.0
3.106.6.164
3.106.176.6
13.237.131.67
15.222.77.144
15.222.108.52
18.157.131.187
18.157.105.182
3.126.25.160
34.248.174.237
52.16.85.139
34.255.61.232
15.236.165.82
15.236.137.228
15.236.166.30
18.228.20.129
18.228.107.195
Please let us know when this is completed.