Can't access machine from WAN

[aetolus]

Hi there,

Hope this is the appropriate forum, and hopefully someone here can help me =)

I'm currently running a webserver on Ubuntu linux, behind a Thomson Speedtouch 510. I have a registered domain which is zps-technologies.com pointing to my static IP (203.173.160.41) using Zoneedit nameservers. The problem I'm having is that recently I can't access my machine whatsoever outside of my LAN.

Pinging it from here times out. Tracing it comes up with the result

203.173.160.41 is from New Zealand(NZ) in region Oceana
 
 
TraceRoute to 203.173.160.41 [203-173-160-41.static.ihug.co.nz]
Hop    (ms)    (ms)    (ms)        IP Address    Host name
1    20    14    10        72.249.134.177    -
2    48    63    23        8.9.232.73    xe-5-3-0.edge3.dallas1.level3.net
3    15    18    18        4.68.19.126    vlan79.csw2.dallas1.level3.net
4    21    24    15        4.69.136.157    ae-73-73.ebr3.dallas1.level3.net
5    42    38    50        4.69.132.77    ae-3.ebr2.losangeles1.level3.net
6    41    52    40        4.69.137.22    ae-72-72.csw2.losangeles1.level3.net
7    41    52    62        4.69.137.37    ae-73-73.ebr3.losangeles1.level3.net
8    55    55    53        4.69.132.9    ae-2.ebr3.sanjose1.level3.net
9    57    56    57        4.69.134.234    ae-83-83.csw3.sanjose1.level3.net
10    59    49    63        4.68.18.131    ae-31-89.car1.sanjose1.level3.net
11    66    64    57        4.53.16.34    vocus-conne.car1.sanjose1.level3.net
12    190    186    181        114.31.199.37    -
13    200    186    190        114.31.203.37    -
14    187    177    187        203.109.130.133    -
15    179    178    182        203.109.130.134    gi5-1-0.akl-grafton-edge1.ihug.net
16    202    241    246        203.109.143.102    gi6-0-0.akl-grafton-bras1.ihug.net
17    Timed out    Timed out    Timed out            -
18    Timed out    Timed out    Timed out            -
19    Timed out    Timed out    Timed out            -
20    Timed out    Timed out    Timed out            -
 
Trace aborted.

I've had port forwarding set up, and also tried (although not recommended) switching off the firewall in my router completely just to see if the latest firmware changed something.

Any help would be much appreciated!