Constant internet connection drop

So I'm using an Asus laptop running Windows 8 and I am having a constant problem with my internet connectivity. Whilst typing this message I've already lost the connection a couple of time. Very frustrating!
I'm using an ethernet connection - no wifi at all.
I get the yellow triangle showing limited connectivity, often on booting my computer, sometimes when I use the Diagnostic tool it shows an adapter problem, othertimes it says nothing is wrong.
I can usually use the internet for about 5-8 mins max before everything goes haywire and I feel like I've tried everything from rebooting my computer to factory settings, changing power settings and resetting/renewing and netsh-ing in command prompt to unplugging my modem for hours and plugging back in.

This is what I've gotten when I do ipconfig/all and everything's okay (temporarily):.....I'm not sure if I should've blanked out bits of my ip address but I guess I'll throw caution to the wind for now.
http://s24.postimg.org/xeby2uh69/ipconfig_okay.jpg
http://s24.postimg.org/rfy4sly7l/ipconfig_okay_2.jpg

Ipconfig/all (net not working):
http://s24.postimg.org/nv299dto1/ipconfig_not_working.jpg

I'm not running Windows 8.1 but everything else is up to date, all drivers etc.

I'm not sure I've posted this in the right area but I figure I should do it quickly while I still have a connection. Any pointers would be massively appreciated!


And the connection has held for more than 20 minutes at the moment:
Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ipconfig/all

Windows IP Configuration

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

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Qualcomm Atheros AR8161 PCI-E Gigabit Eth
ernet Controller (NDIS 6.30)
Physical Address. . . . . . . . . : 50-46-5D-2E-12-00
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 203.128.161.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 24 May 2014 08:16:37
Lease Expires . . . . . . . . . . : 24 May 2014 09:16:38
Default Gateway . . . . . . . . . : 203.128.161.1
DHCP Server . . . . . . . . . . . : 211.235.32.243
DNS Servers . . . . . . . . . . . : 164.124.101.2
211.235.32.100
211.235.32.227
168.126.63.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 68-5D-43-9E-81-A4
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 68-5D-43-9E-81-A7
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter WiFi:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Centrino(R) Wireless-N 2230
Physical Address. . . . . . . . . : 68-5D-43-9E-81-A3
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter 6TO4 Adapter:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:cb80:a103::cb80:a103(Preferred)
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 164.124.101.2
211.235.32.100
211.235.32.227
168.126.63.1
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{6FB8691E-48BF-4F22-B687-8FF41401B347}:

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.{ABA5BC75-2991-49F0-A714-F76B3C728671}:

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 Local Area Connection* 14:

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. . . . . . . . . . . : 2001:0:9d38:6ab8:100c:155d:347f:5efc(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::100c:155d:347f:5efc%17(Preferred)
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Windows\system32>

 

Please read this thread for information on checking your modem through your ISP:

http://forums.majorgeeks.com/showthread.php?t=286183

 

Win 8.1 has been a big problem for us with apparently very-flakey network-adapter drivers. We can take those machines back to Win8.0 and have solid connections, but do a clean install to 8.1 and cereal-makers don't have as many flakes.

That said, the biggest failure we see on internet-drops is ISP related. Meaning "nothing the end user can do but complain long and loud enough until the ISP swaps out equipment, or does an upgrade." (Your calls may be referred to the ISP "Til Hell Freezes Over" Department, by the way. Or the "Hold Yer Breath Til Yer Blue in The Face" Department.)

Hopefully, the problems that started this thread will have a solution you can enact.

These name-brand laptops often will use one of a few different network adapters (NICs - Network Interface Card). I might install a product like SandraLite, which is merely a System Diag & Identifying software package. Then, I'd try to uninstall my network driver and refuse to install it upon re-start of the computer.

Then, let Sandra Lite tell me which network adapter it finds in hardware - NOT the software driver. I mention this because it might be possible to install the wrong NIC's driver onto a similar-but-exact NIC-chipset itself. "Flakey-ness" might be a function of Right NIC/Imprecise Driver.

One thing a Win8.1 installation would do - if you have a spare 2.5" notebook drive, install that and do a clean install of Win8.1 It WILL locate drivers that support the hardware and then you can measure our claims of "Win8.1 flakey-ness" against your actual hardware.

 

(Oops, too late to EDIT...)

I recommend the '2nd hard drive' method of testing because I can find 2.5" drives for $50 or less that will be perfect for these testing-purposes, and then I've left my original hard-drive untouched, unaffected by these 'tests'.

 

(Another too late to edit comment...)

I haven't had Centrino NIC chips get mixed up. My comments about loading an inexact driver, therefore, should be discounted heavily. If this had been some other Intel NIC chipset, or RealTek, etc, I've seen those accept a 'poor substitute' for some workability. But I've never had (or even tried) this situation with Centrinos. Gee - I wonder if that's why Intel stopped producing such good products?

 

Thanks for all the suggestions guys! I've had a solid connection for more than 17 hours now so I'm hoping it's solved- I called my ISP and they sent someone out yesterday, but before that I turned off Windows Firewall and left Avira's firewall on. I'm not sure if that's what solved it but when the ISP guy came, I had a connection that hasn't broken since. He said there didn't seem to be a problem other than a slower speed which he would fix back at the center. I think it must've been the firewall because it was the only thing I hadn't tried so far. I don't really want to turn it back on just incase I tempt fate, but I'd suggest it to anyone else having the same problem. Almost too simple a solution but I'm happy that weeks of bad connections are over for now...
Thanks again for all your help-I'll report back in a couple of days whether the connection is lost or not, just so I can mark this as solved or unsolved.

 

Ah, the two running firewalls might have a lot to do with it, although I'm surprised that Avira's installation didn't include an auto-disable the Windows one. When I experiment with firewalls, I also do an uninstall and even manually scan the registry to ensure nothing's left behind.

Then a reboot and install the next test firewall.

Same with anti-virus, too.