Ecco la risposta del test

1. Your Tweakable Settings:
Receive Window (RWIN): 69880
Window Scaling: 2
Path MTU Discovery: ON
RFC1323 Window Scaling: ON
RFC1323 Time Stamping: ON
Selective Acks: ON
MSS requested: 1372
TTLless any hops behind firewall)64
TTL remaining: 48

2. Test 146000 byte download
Actual data bytes sent: 150080
Actual data packets: 111
Max packet sent (MTU): 1400
Max packet recd (MTU): 1400
Retransmitted data packets: 3
sacks you sent: 35
pushed data pkts: 11
data transmit time: 1.568 secs
our max idletime: 225.6 ms
transfer rate: 64630 bytes/sec
transfer rate: 517 kbits/sec
This is not a speed test!
transfer efficiency: 97%

3. ICMP (ping) check
Minimum ping: 169 ms
Maximum ping: 185 ms
Ping stability:
176 181 180 185 171 171 170 172 169 182

pero ho qualche problema per interpretarli, da quel che ho capito il max MTU accettabile è di 1400 giusto? a cosa puo essere dovuta questa limitazione?