Internet drops when downloading

Hi,

I recently had to reformat my computer and installed a version of Windows 7 onto my desktop. I discovered that when i come to re download some of my games via steam, or watch a video on youtube my internet slowly loses speed and eventually cuts out to limited or no connectivity (goes from 4-5mbps and drops to 40kpbs within about 30 seconds). This is the only computer or device which experiences these issues. I've looked online and tried various fixes which haven't permanently worked. Ive had slight success which has lasted for a night then when it comes to turning the machine back on the next day im right back to square one.

Any help would be appreciated as I never had this issue before I had to re format.

Thanks

Sorry for the late reply, have been at work; Windows 7 is up to date including SP1 and is activacted.

All drivers are re installed. Ive had vague success with changing some settings (renewing and releasing ip and some other netsh cmds) but it never lasts, within a few hours its back to cutting out.

I'll get onto filling out my system specs with that tool

I had to reformat due to system crashes, I wanted to find out if it was a software or a hardware issue which was causing the crashing; Havent got round to testing that as of yet as im trying to figure this out first.
Windows 7 was from amazon.

1. Is this a wired or wireless connection issue?
Wireless

2. Who is your Internet Service Provider (ISP)?
Virgin Media

3. What type of Broadband connection are you using?
Cable

4. What is the exact Make and Model of your Modem, Router or Modem/Router Combo -
Its a Virgin Media Superhub 2, Netgear

5. What is the Name of the Anti-Virus, Security or Firewall Software installed from the problematic computer -
Microsoft Security Essentials


here is my ipconfig.txt

Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : ASUS PCE-N15 11n Wireless LAN PCI-E Card
Physical Address. . . . . . . . . : 50-46-5D-B0-7A-F8
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::fc20:44dd:a10:5e19%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.7(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 16 May 2014 11:08:44
Lease Expires . . . . . . . . . . : 17 May 2014 11:08:43
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 223364701
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-01-8A-12-94-DE-80-6B-11-8B
DNS Servers . . . . . . . . . . . : 194.168.4.100
194.168.8.100
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Qualcomm Atheros AR8161/8165 PCI-E Gigabit Ethernet Controller (NDIS 6.20)
Physical Address. . . . . . . . . : 94-DE-80-6B-11-8B
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{AC3F9D36-6048-42EF-9099-B7279D5DD62B}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{EDFD02C7-D614-408E-96A2-F33F97D0379B}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

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. . . . . . . . . . . : 2001:0:9d38:6abd:89:35f5:3f57:fff8(Preferred)
Link-local IPv6 Address . . . . . : fe80::89:35f5:3f57:fff8%11(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

I have the Xirrus wifi inspector, Just not quite sure what you wanted me to do with that so I waited.

Thanks for your help guys.

Im using the Windows Firewall and yeah MSE is the Anti Virus im running.

I have attached the screenshot of Xirrus running.

Thanks for the help.