Can someone explain the reasons for this?

 Tracing route to 203.217.25.100 [203-217-25-100.bliink.ihug.co.nz] on port 27001

Over a maximum of 30 hops.
1       *       5 ms    5 ms    192.168.0.1
2       12 ms   11 ms   9 ms    10.33.96.1
3       18 ms   16 ms   14 ms   218.101.61.100  [lo0.internet.ivpn.pe19.telstraclear.net]
4       *       *       *       Request timed out.
5       24 ms   22 ms   23 ms   203.98.50.1     [ie1-g-0-0-0.telstraclear.net]
6       22 ms   26 ms   25 ms   203.98.50.251   [ge-0-2-0-1.xcore1.acld.telstraclear.net]
7       31 ms   26 ms   30 ms   203.167.233.10
8       47 ms   45 ms   50 ms   202.84.142.153  [i-3-1-0.syd-core03.bx.reach.com]
9       47 ms   47 ms   50 ms   203.50.13.13    [TenGigE0-2-0-5.oxf-gw1.Sydney.telstra.net]
10      48 ms   61 ms   57 ms   203.50.6.5      [Bundle-Ether1.ken-core4.Sydney.telstra.net]
11      52 ms   49 ms   49 ms   203.50.6.146    [Bundle-Ether1.ken39.Sydney.telstra.net]
12      56 ms   140 ms  124 ms  139.130.15.30   [iinetl1.lnk.telstra.net]
13      79 ms   50 ms   45 ms   203.215.20.95   [te1-4.syd-mas-bdr1.iinet.net.au]
14      168 ms  107 ms  48 ms   203.215.18.15
15      Destination Reached in 120 ms. Connection established to 203.217.25.100
Trace Complete.

and then the next one seconds later...

Tracing route to 203.217.25.100 [203-217-25-100.bliink.ihug.co.nz] on port 27001

Over a maximum of 30 hops.
1       210 ms  4 ms    7 ms    192.168.0.1
2       *       696 ms  23 ms   10.33.96.1
3       74 ms   791 ms  319 ms  218.101.61.100  [lo0.internet.ivpn.pe19.telstraclear.net]
4       *       *       *       Request timed out.
5       33 ms   189 ms  34 ms   203.98.50.1     [ie1-g-0-0-0.telstraclear.net]
6       95 ms   31 ms   67 ms   203.98.50.251   [ge-0-2-0-1.xcore1.acld.telstraclear.net]
7       22 ms   71 ms   347 ms  203.167.233.10
8       56 ms   49 ms   61 ms   202.84.142.153  [i-3-1-0.syd-core03.bx.reach.com]
9       53 ms   98 ms   48 ms   203.50.13.13    [TenGigE0-2-0-5.oxf-gw1.Sydney.telstra.net]
10      137 ms  47 ms   148 ms  203.50.6.5      [Bundle-Ether1.ken-core4.Sydney.telstra.net]
11      *       67 ms   126 ms  203.50.6.146    [Bundle-Ether1.ken39.Sydney.telstra.net]
12      66 ms   54 ms   50 ms   139.130.15.30   [iinetl1.lnk.telstra.net]
13      65 ms   123 ms  71 ms   203.215.20.95   [te1-4.syd-mas-bdr1.iinet.net.au]
14      55 ms   83 ms   56 ms   203.215.18.15
15      Destination Reached in 3290 ms. Connection established to 203.217.25.100

Trace Complete.