"Destination host unreachable" when pinged from outside my network

TSG info :
Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 8.1, 64 bit
Processor: Intel(R) Core(TM) i7-4810MQ CPU @ 2.80GHz, Intel64 Family 6 Model 60 Stepping 3
Processor Count: 8
RAM: 8110 Mb
Graphics Card: NVIDIA GeForce GTX 870M, -1 Mb
Hard Drives: C: Total - 121074 MB, Free - 4367 MB; D: Total - 934781 MB, Free - 790990 MB;
Motherboard: Micro-Star International Co., Ltd., MS-1763
Antivirus: Windows Defender, Disabled

Hey guys, I'm trying to setup an RMI in java, after struggling with it for a long time I noticed that it's probably not my RMI that isn't working, but that there's something wrong in my networking.
When I asked a friend outside of the city to ping me to test his ability to connect to me, he said the result was Destination Host Unreachable. After a lot of googling I got explained that this is likely a physical problem, which is weird because I have perfect internet acces. I've disabled all my firewalls, and googling this problem is nearly impossible because googling "Destination host unreachable" usually gives results of attempts to ping a local machine from another local machine, not getting pinged from outside of your network. Does anyone have any idea what this could possibly be ?
I've tried:
1. Restarting all network devices in my network.
2. Changing IPv4 settings to a static IP.
3. Activating Remote Access service (failed)
4. Checking all physical cables

If I haven't given enough info be sure to ask me for more, I'm not exactly sure what kind of other info you'd need.
Thanks in advance,

Boyen.

EDIT : guess it can't hurt to post my ipconfig/all here :
Windows IP Configuration

Host Name . . . . . . . . . . . . : MSI-Boyen
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : telenet.be

Wireless LAN adapter Local Area Connection* 4:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #2

Physical Address. . . . . . . . . : F8-16-54-29-E2-72
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wi-Fi 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Intel(R) Dual Band Wireless-AC 7260 #2
Physical Address. . . . . . . . . : F8-16-54-29-E2-71
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Killer e2200 Gigabit Ethernet Controller
(NDIS 6.30)
Physical Address. . . . . . . . . : 44-8A-5B-EC-83-AA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2a02:1810:cc14:eb00:315a:5af8:2495:f3af(P
referred)
Temporary IPv6 Address. . . . . . : 2a02:1810:cc14:eb00:95:48f5:3c9c:200e(Dep
recated)
Temporary IPv6 Address. . . . . . : 2a02:1810:cc14:eb00:b832:f9e7:86bf:c8fa(D
eprecated)
Temporary IPv6 Address. . . . . . : 2a02:1810:cc14:eb00:c594:6f4b:1ac1:af03(P
referred)
Link-local IPv6 Address . . . . . : fe80::315a:5af8:2495:f3af%4(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.186(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : zaterdag 20 december 2014 19:12:49
Lease Expires . . . . . . . . . . : dinsdag 23 december 2014 00:52:52
Default Gateway . . . . . . . . . : fe80::5e35:3bff:fe21:8a35%4
192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 277645733
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-87-75-B6-44-8A-5B-EC-83-AA

DNS Servers . . . . . . . . . . . : 2a02:1800:100::43:1
2a02:1800:100::43:2
195.130.131.3
195.130.130.131
NetBIOS over Tcpip. . . . . . . . : Enabled
Connection-specific DNS Suffix Search List :
telenet.be

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fb:1073:399d:ab3e:5efd(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::1073:399d:ab3e:5efd%8(Preferred)
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 436207616
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-87-75-B6-44-8A-5B-EC-83-AA

NetBIOS over Tcpip. . . . . . . . : Disabled