2 in 1 Network adapter turning off & Random Lockups

Hi guys I'm hoping some can help me with these rather annoying problems that's been happening for the last week or more.

Problem #1 (happening for 2-3 weeks)

Sometimes I will turn my pc on and I have no internet access because the network adapter is disabled for some reason, this problem is not just with start up.
I could be just browsing the web or even in an online multiplayer game, if browsing I find out only when I cant load a page and I look at the tray icon and there's a blue icon or maybe a red cross so I hover over it and it says no internet access.
So I go through the procedures of reestablishing the connection via the network troubleshooting wizard and it's says something like, restart your modem to fix it.
So I reboot my modem and I get my internet access back finally.

This will happen way too often and can take up to 20 minutes to fix sometimes.

Problem #2 (happening for 1 week)(the most annoying)

Random pc lockups, it could be on screensaver at the time or in a game, this has been happening for about a week and is frustrating because at the time I cannot do anything at all, no alt-tab out of application, no task manager, nothing.
I have to push the reset button on the case to Restart Windows (normally) not safe mode.

I'm usually pretty alright with pc problems and can fix them myself but this has got me, I have included a screenshot of today's Even Viewer showing lockups this afternoon, well I think they are the lockups as it happened a couple of times, once while in game GTAIV and twice on screensaver.Im' not real sure what I am looking for in this Event Viewer either
After the last lock up today I did a system restore to the 13/6/12 hoping I might eliminate the problem there, but no I am once again at the mercy of the lockup god

Here's the application error for GTAIV - game lockup this afternoon.

Code:

Log Name:      Application
Source:        Application Error
Date:          10/07/2012 4:08:24 PM
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      VIKING
Description:
Faulting application name: GTAIV.exe, version: 1.0.7.0, time stamp: 0x4bd9efbe
Faulting module name: GTAIV.exe, version: 1.0.7.0, time stamp: 0x4bd9efbe
Exception code: 0xc0000005
Fault offset: 0x001a9346
Faulting process id: 0x1830
Faulting application start time: 0x01cd5e6264fa9427
Faulting application path: G:\Grand Theft Auto IV\GTAIV.exe
Faulting module path: G:\Grand Theft Auto IV\GTAIV.exe
Report Id: a7ec5dcd-ca55-11e1-8217-0026832fc673
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" />
    <EventID Qualifiers="0">1000</EventID>
    <Level>2</Level>
    <Task>100</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2012-07-10T06:08:24.000000000Z" />
    <EventRecordID>25571</EventRecordID>
    <Channel>Application</Channel>
    <Computer>VIKING</Computer>
    <Security />
  </System>
  <EventData>
    <Data>GTAIV.exe</Data>
    <Data>1.0.7.0</Data>
    <Data>4bd9efbe</Data>
    <Data>GTAIV.exe</Data>
    <Data>1.0.7.0</Data>
    <Data>4bd9efbe</Data>
    <Data>c0000005</Data>
    <Data>001a9346</Data>
    <Data>1830</Data>
    <Data>01cd5e6264fa9427</Data>
    <Data>G:\Grand Theft Auto IV\GTAIV.exe</Data>
    <Data>G:\Grand Theft Auto IV\GTAIV.exe</Data>
    <Data>a7ec5dcd-ca55-11e1-8217-0026832fc673</Data>
  </EventData>
</Event>

Code:

This is the error which occurred while playing bf3 the other night.


	

		

			

			
				Log Name:      Application
Source:        Application Hang
Date:          6/07/2012 2:58:18 AM
Event ID:      1002
Task Category: (101)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      VIKING
Description:
The program bf3.exe version 1.3.0.0 stopped interacting with Windows and was closed. To see if more information about the problem is available, check the problem history in the Action Center control panel.
 Process ID: 1ee4
 Start Time: 01cd5ace617c5530
 Termination Time: 300
 Application Path: G:\Origin Games\Battlefield 3\bf3.exe
 Report Id: 

Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Hang" />
    <EventID Qualifiers="0">1002</EventID>
    <Level>2</Level>
    <Task>101</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2012-07-05T16:58:18.000000000Z" />
    <EventRecordID>24792</EventRecordID>
    <Channel>Application</Channel>
    <Computer>VIKING</Computer>
    <Security />
  </System>
  <EventData>
    <Data>bf3.exe</Data>
    <Data>1.3.0.0</Data>
    <Data>1ee4</Data>
    <Data>01cd5ace617c5530</Data>
    <Data>300</Data>
    <Data>G:\Origin Games\Battlefield 3\bf3.exe</Data>
    <Data>
    </Data>
    <Binary>54006F00700020006C006500760065006C002000770069006E0064006F0077002000690073002000690064006C00650000000000</Binary>
  </EventData>
</Event>
			
		
	

Cant anyone shed some light on these most annoying problems.

Cheers,
6BR

bump, need help please.