I was asked by an elderly friend to have a look at his internet connection as everytime the phone rings it throws skype offline.
Originally I thought it would be a lack of filters but discovered he is on UFB fibre.
Looking into his connectivity I started looking for drop outs and other anomolies. there are a few.
however the big puzzler:
Speedtests are reporting his IP address differently to whatis my ip, grc.coms sheilds up and also different ip addresses between speed tests.
For example.
GRC.com says we are at ip address: 122.58.24.17 - which would agree with the first two speed tests run (see results below). Whatis my ip agrees with that ip address.
Speedtests are showing us as coming from
11/7/2014 4:28 AM GMT
210.55.212.99
28.24 Mb/s
9.98 Mb/s
13 ms
Wellington
~ 50 mi
Share
122.58.24.17
11/7/2014 4:12 AM GMT
122.58.24.17
28.00 Mb/s
6.49 Mb/s
26 ms
Christchurch
< 50 mi
Share
122.58.24.17
11/7/2014 4:04 AM GMT
122.58.24.17
27.80 Mb/s
6.39 Mb/s
36 ms
Christchurch
< 50 mi
Share
and also from ip addresses like 210.55.212.24 and 210.55.212.63 (see attached image below)

A tracert out the door to 8.8.8.8 shows me as being on:
Tracing route to google-public-dns-a.google.com [8.8.8.8]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.1.254
2 5 ms 3 ms 7 ms 222-152-1-1.jetstream.xtra.co.nz [222.152.1.1]
3 * * * Request timed out.
The tcom router shows us as only having a fibre connection, no 3G, no adsl fail over.
TNZ_FIBRE
122.58.24.17
255.255.255.255
222.152.1.1
THe fact that the fibre is dropping skype and other download connections when the copper based phone rings is wierd. THe drop outs and jitter on fibre when pinging the first hop is annoying. The changed ip address is just plain puzzling.
The tcom router (HG630b)'s logs shows lots of dropping of UPNP ports and reconnectionof those ports for skype.
<pre>
2014-10-25 23:8:33 User Management upnp 1 UPnP set action(AddPortMapping)[param NewRemoteHost, value:][param NewExternalPort, value:30382][param NewProtocol, value:TCP][param NewInternalPort, value:30382][param NewInternalClient, value:192.168.1.67][param NewEnabled, value:1][param NewPortMappingDescription, value:Skype TCP at 192.168.1.67:30382 (2854)] success !
2014-10-25 23:8:32 User Management upnp 1 UPnP set action(AddPortMapping)[param NewRemoteHost, value:][param NewExternalPort, value:30382][param NewProtocol, value:UDP][param NewInternalPort, value:30382][param NewInternalClient, value:192.168.1.67][param NewEnabled, value:1][param NewPortMappingDescription, value:Skype UDP at 192.168.1.67:30382 (2854)] success !
2014-10-25 23:8:31 User Management upnp 1 UPnP set action(DeletePortMapping)[param NewRemoteHost, value:][param NewExternalPort, value:30382][param NewProtocol, value:TCP] success !
2014-10-25 23:8:29 User Management upnp 1 UPnP set action(DeletePortMapping)[param NewRemoteHost, value:][param NewExternalPort, value:30382][param NewProtocol, value:UDP] success !
2014-10-25 23:1:41 User Management upnp 1 TR064 set action(AddPortMapping) failed ! ErrorCode: 501
2014-10-25 23:1:39 User Management upnp 1 TR064 set action(AddPortMapping) failed ! ErrorCode: 501
2014-10-25 23:1:38 User Management upnp 1 TR064 set action(DeletePortMapping) failed ! ErrorCode: 501
2014-10-25 23:1:37 User Management upnp 1 TR064 set action(DeletePortMapping) failed ! ErrorCode: 501
</pre>
Any thoughts on either the drop outs or the changing ip addresses on speed tests?
Cheers
Shane