Aquí los datos técnicos que prueben la culpa es con Movistar (o sus proveedores/conexiones de IP):
tcp4 0 0 <removed> uklon5-vip-bx-001.aaplimg.com.http ESTABLISHED
Summary created by Wireshark 1.99.0 (v1.99.0-2-g9033f13 from unknown)
File:
Name: /var/folders/zy/q8nlyhp96vg9rc_858w3db9c0000gn/T//wireshark_pcapng_en5_20150903 154831_N9laPU
Length: 1243580 bytes
Format: Wireshark/... - pcapng
Encapsulation: Ethernet
Time:
First packet: 2015-09-03 15:48:31
Last packet: 2015-09-03 15:49:58
Elapsed: 00:01:27
Capture:
OS: Mac OS X 10.10.5, build 14F27 (Darwin 14.5.0)
Capture application: Dumpcap (Wireshark) 1.99.0 (v1.99.0-2-g9033f13 from unknown)
en5
Dropped packets: Unknown
Capture filter: none
Link type: Ethernet
Packet size limit: 262144 bytes
Statistics:
Packets: 1610
Between first and last packet: 87.011 sec
Avg. packets/sec: 18.503
Avg. packet size: 738 bytes
Bytes: 1188846
Avg. bytes/sec: 13663.113
Avg. MBit/sec: 0.109
=======================
Movistar 4G, tethering via USB:
Active Internet connections (including servers)
Proto Recv-Q Send-Q Local Address Foreign Address (state)
tcp4 0 0 <removed> uklon5-vip-bx-001.aaplimg.com.http ESTABLISHED
Summary created by Wireshark 1.99.0 (v1.99.0-2-g9033f13 from unknown)
File:
Name: /var/folders/zy/q8nlyhp96vg9rc_858w3db9c0000gn/T//wireshark_pcapng_en7_20150903 155333_IODdN0
Length: 2186378 bytes
Format: Wireshark/... - pcapng
Encapsulation: Ethernet
Time:
First packet: 2015-09-03 15:53:34
Last packet: 2015-09-03 15:55:56
Elapsed: 00:02:22
Capture:
OS: Mac OS X 10.10.5, build 14F27 (Darwin 14.5.0)
Capture application: Dumpcap (Wireshark) 1.99.0 (v1.99.0-2-g9033f13 from unknown)
en7
Dropped packets: Unknown
Capture filter: none
Link type: Ethernet
Packet size limit: 262144 bytes
Statistics:
Packets: 3022
Between first and last packet: 142.024 sec
Avg. packets/sec: 21.278
Avg. packet size: 689 bytes
Bytes: 2083437
Avg. bytes/sec: 14669.605
Avg. MBit/sec: 0.117
======================
Orange 3G, tethering via USB:
Active Internet connections (including servers)
Proto Recv-Q Send-Q Local Address Foreign Address (state)
tcp4 0 0 <removed> defra1-vip-bx-001.aaplimg.com.http ESTABLISHED
Summary created by Wireshark 1.99.0 (v1.99.0-2-g9033f13 from unknown)
File:
Name: /var/folders/zy/q8nlyhp96vg9rc_858w3db9c0000gn/T//wireshark_pcapng_en7_20150903 155919_XCEYBH
Length: 76507378 bytes
Format: Wireshark/... - pcapng
Encapsulation: Ethernet
Time:
First packet: 2015-09-03 15:59:19
Last packet: 2015-09-03 16:00:17
Elapsed: 00:00:57
Capture:
OS: Mac OS X 10.10.5, build 14F27 (Darwin 14.5.0)
Capture application: Dumpcap (Wireshark) 1.99.0 (v1.99.0-2-g9033f13 from unknown)
en7
Dropped packets: Unknown
Capture filter: none
Link type: Ethernet
Packet size limit: 262144 bytes
Statistics:
Packets: 68682
Between first and last packet: 57.984 sec
Avg. packets/sec: 1184.504
Avg. packet size: 1080 bytes
Bytes: 74171988
Avg. bytes/sec: 1279184.996
Avg. MBit/sec: 10.233
Resultado: 120kbit con Movistar Fibra y 4G, 10Mbit con Orange 3G. Es definitivamente un problema con Movistar!!!