Nat Problem, My port are open!

[RaffoSmith]

I need help!!
Test starting
Default public address is 2.227.124.18
1 NAT device found
    MediaAccess TG589vn v3 (1342RA188): address=192.168.1.254:8000, public address=2.227.124.18
No SOCKS proxy found
No HTTP proxy found
No explicit bind address set
Testing HTTP outbound
    Test successful
Testing TCP outbound
    Test successful
Testing UDP outbound
    Test successful
Testing TCP port 6888 inbound
    Test successful
Testing UDP port 6888 inbound
    Sending outbound packet and waiting for reply probe (timeout=5000)
    Sending completion event
    Test successful
1 public/external addresses found
    2.227.124.18
    AS details: as=12874,asn=FASTWEB Fastweb SpA,IT, bgp_prefx=2.224.0.0/13[/2.224.0.0-/2.231.255.255]
Vuze Services test
    Vuze Website - http://www.vuze.com
        Certificate: CN=*.vuze.com, OU=Domain Control Validated - RapidSSL®, OU=See http://www.rapidssl.com/resources/cps ©15, OU=GT10270993
        Connection result: 200/OK
    Client Website - client.vuze.com
        Certificate: CN=*.vuze.com, OU=Domain Control Validated - RapidSSL®, OU=See http://www.rapidssl.com/resources/cps ©15, OU=GT10270993
        Connection result: 200/OK
    Version Server - version.vuze.com
        Connection result: 200/OK
    Pairing Server - pair.vuze.com
        Certificate: CN=*.vuze.com, OU=Domain Control Validated - RapidSSL®, OU=See http://www.rapidssl.com/resources/cps ©15, OU=GT10270993
        Connection result: 200/OK
    License Server - license.vuze.com
        Certificate: CN=*.vuze.com, OU=Domain Control Validated - RapidSSL®, OU=See http://www.rapidssl.com/resources/cps ©15, OU=GT10270993
        Connection result: 200/OK
    Plugins Website - plugins.vuze.com
        Certificate: CN=*.vuze.com, OU=Domain Control Validated - RapidSSL®, OU=See http://www.rapidssl.com/resources/cps ©15, OU=GT10270993
        Connection result: 200/OK
Indirect Connect test
    Connecting to https://www.vuze.com
    Certificate: CN=*.vuze.com, OU=Domain Control Validated - RapidSSL®, OU=See http://www.rapidssl.com/resources/cps ©15, OU=GT10270993
    Connection result: 200/OK
Distributed protocol test
  Incoming routing established for FB00F73DE4285E12FFA784821A7B770DDD3125C8
  Searching 128 contacts for 8 test targets
  Making outbound connection to /31.48.57.37:37178
  Making outbound connection to /5.68.231.219:42461
  Making outbound connection to /172.112.112.29:57500
  Making outbound connection to /89.83.61.171:50725
  Making outbound connection to /5.71.30.237:43250
  Making outbound connection to /85.201.74.121:30234
  Making outbound connection to /50.72.229.101:14512
  Making outbound connection to /88.110.120.94:34210
  Making outbound connection to /80.212.14.117:59282
  Making outbound connection to /85.196.89.210:24585
  Making outbound connection to /85.154.68.102:20840
  Making outbound connection to /95.175.91.116:42827
  Making outbound connection to /14.2.60.120:60718
  Making outbound connection to /59.189.160.70:57255
  Making outbound connection to /88.162.170.223:33252
  Searching complete, 15 targets found
    Status: sessions=15, out_attempts=15, out_connect=15, in_connect=0
    Status: sessions=15, out_attempts=15, out_connect=15, in_connect=0
  Destroying tester
  Results
    Outbound,Leecher,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Seed,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Leecher,connected, hand sent, hand !recv, bitf !sent, bitf !recv
    Outbound,Seed,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Leecher,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Seed,connected, hand sent, hand recv, bitf sent, bitf recv
Test complete
    Outbound,Leecher,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Seed,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Leecher,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Seed,connected, hand sent, hand !recv, bitf !sent, bitf !recv
    Outbound,Leecher,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Seed,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Leecher,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Seed,connected, hand sent, hand recv, bitf sent, bitf recv
    Outbound,Leecher,connected, hand sent, hand recv, bitf sent, bitf recv
    No incoming connections received, likely NAT problems
  Incoming routing destroyed for FB00F73DE4285E12FFA784821A7B770DDD3125C8

Why tcp works, and udp not?