When I try to connect to the internet it will frequently refuse to authenticate my username/password giving me "Error 721: The remote computer is not responding." When I receive phonecalls it will disconnect me from the internet. (This is relatively new).
The largest problem is that I seem to have a 1 in 2 chance of my entire computer crashing the moment it does connect to the internet. On the blue screen when it crashes I get the "driver irql not less or equal" message. Sometimes it will also point to xcpip.sys but usually that's blank.
I have not installed any new hardware, save for 1GB of RAM which was purchased and installed after I started to have frequent crashes (I removed the old memory). The new memory appears to have fixed another crashing issue I was experiencing when I was getting blue screens when booting up. It's not helped with the internet issues at all though.
Please can someone help.
Edited to add: I found WhoCrashed from reading the other threads. I'm not sure if it's relevant or not in my case but I ran it anyway and have posted what it told me below.
On Wed 18/07/2012 08:27:33 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini071812-06.dmp
This was probably caused by the following module: alcan5wn.sys (alcan5wn+0x8A17)
Bugcheck code: 0x100000D1 (0x0, 0x2, 0x0, 0x0)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\alcan5wn.sys
product: SpeedTouch USB
company: THOMSON
description: WAN Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: alcan5wn.sys (WAN Driver, THOMSON).
Google query: alcan5wn.sys THOMSON CUSTOM_ERROR
On Wed 18/07/2012 08:23:57 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini071812-05.dmp
This was probably caused by the following module: xcpip.sys (xcpip+0x1555)
Bugcheck code: 0x100000D1 (0x4, 0x2, 0x0, 0xFFFFFFFFED9FD555)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\xcpip.sys
This file could not be located on your computer, we suggest that you search on its name with Google.
Click here to do a Google search on xcpip.sys
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: xcpip.sys .
Google query: xcpip.sys CUSTOM_ERROR
On Wed 18/07/2012 06:58:22 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini071812-04.dmp
This was probably caused by the following module: alcan5wn.sys (alcan5wn+0x8A17)
Bugcheck code: 0x100000D1 (0x0, 0x2, 0x0, 0x0)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\alcan5wn.sys
product: SpeedTouch USB
company: THOMSON
description: WAN Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: alcan5wn.sys (WAN Driver, THOMSON).
Google query: alcan5wn.sys THOMSON CUSTOM_ERROR
On Wed 18/07/2012 06:53:32 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini071812-03.dmp
This was probably caused by the following module: xcpip.sys (xcpip+0x1555)
Bugcheck code: 0x100000D1 (0x4, 0x2, 0x0, 0xFFFFFFFFEDD5B555)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\xcpip.sys
This file could not be located on your computer, we suggest that you search on its name with Google.
Click here to do a Google search on xcpip.sys
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: xcpip.sys .
Google query: xcpip.sys CUSTOM_ERROR
On Wed 18/07/2012 06:31:20 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini071812-02.dmp
This was probably caused by the following module: xcpip.sys (xcpip+0x1555)
Bugcheck code: 0x100000D1 (0x4, 0x2, 0x0, 0xFFFFFFFFED9F3555)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\xcpip.sys
This file could not be located on your computer, we suggest that you search on its name with Google.
Click here to do a Google search on xcpip.sys
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: xcpip.sys .
Google query: xcpip.sys CUSTOM_ERROR
On Wed 18/07/2012 04:02:40 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini071812-01.dmp
This was probably caused by the following module: alcan5wn.sys (alcan5wn+0x8A17)
Bugcheck code: 0x100000D1 (0x0, 0x2, 0x0, 0x0)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\alcan5wn.sys
product: SpeedTouch USB
company: THOMSON
description: WAN Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: alcan5wn.sys (WAN Driver, THOMSON).
Google query: alcan5wn.sys THOMSON CUSTOM_ERROR
On Sat 14/07/2012 10:40:05 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini071412-01.dmp
This was probably caused by the following module: xcpip.sys (xcpip+0x1555)
Bugcheck code: 0x100000D1 (0x4, 0x2, 0x0, 0xFFFFFFFFEE0F5555)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\xcpip.sys
This file could not be located on your computer, we suggest that you search on its name with Google.
Click here to do a Google search on xcpip.sys
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: xcpip.sys .
Google query: xcpip.sys CUSTOM_ERROR
On Fri 13/07/2012 19:35:12 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini071312-01.dmp
This was probably caused by the following module: xcpip.sys (xcpip+0x1555)
Bugcheck code: 0x100000D1 (0x4, 0x2, 0x0, 0xFFFFFFFFEE2E6555)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\xcpip.sys
This file could not be located on your computer, we suggest that you search on its name with Google.
Click here to do a Google search on xcpip.sys
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: xcpip.sys .
Google query: xcpip.sys CUSTOM_ERROR
On Wed 11/07/2012 09:06:25 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini071112-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x7AAE2)
Bugcheck code: 0x100000C5 (0x0, 0x2, 0x1, 0xFFFFFFFF80551AE2)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.
On Tue 10/07/2012 14:16:32 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini071012-01.dmp
This was probably caused by the following module: avgidsdriver.sys (AVGIDSDriver+0x947C)
Bugcheck code: 0x100000C5 (0x0, 0x2, 0x1, 0xFFFFFFFF805519E9)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\avgidsdriver.sys
product: AVG IDS
company: AVG Technologies CZ, s.r.o.
description: IDS Application Activity Monitor Driver.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: avgidsdriver.sys (IDS Application Activity Monitor Driver., AVG Technologies CZ, s.r.o. ).
Google query: avgidsdriver.sys AVG Technologies CZ, s.r.o. CUSTOM_ERROR
On Wed 04/07/2012 12:32:58 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini070412-02.dmp
This was probably caused by the following module: alcan5wn.sys (alcan5wn+0x8A17)
Bugcheck code: 0x100000D1 (0x0, 0x2, 0x0, 0x0)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\alcan5wn.sys
product: SpeedTouch USB
company: THOMSON
description: WAN Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: alcan5wn.sys (WAN Driver, THOMSON).
Google query: alcan5wn.sys THOMSON CUSTOM_ERROR
On Wed 04/07/2012 12:23:33 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini070412-01.dmp
This was probably caused by the following module: alcan5wn.sys (alcan5wn+0x8A17)
Bugcheck code: 0x100000D1 (0x0, 0x2, 0x0, 0x0)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\alcan5wn.sys
product: SpeedTouch USB
company: THOMSON
description: WAN Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: alcan5wn.sys (WAN Driver, THOMSON).
Google query: alcan5wn.sys THOMSON CUSTOM_ERROR
On Tue 03/07/2012 19:00:45 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini070312-02.dmp
This was probably caused by the following module: alcan5wn.sys (alcan5wn+0x8A17)
Bugcheck code: 0x100000D1 (0x0, 0x2, 0x0, 0x0)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\alcan5wn.sys
product: SpeedTouch USB
company: THOMSON
description: WAN Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: alcan5wn.sys (WAN Driver, THOMSON).
Google query: alcan5wn.sys THOMSON CUSTOM_ERROR
On Tue 03/07/2012 18:44:49 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini070312-01.dmp
This was probably caused by the following module: xcpip.sys (xcpip+0x1555)
Bugcheck code: 0x100000D1 (0x4, 0x2, 0x0, 0xFFFFFFFFEF93A555)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\xcpip.sys
This file could not be located on your computer, we suggest that you search on its name with Google.
Click here to do a Google search on xcpip.sys
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: xcpip.sys .
Google query: xcpip.sys CUSTOM_ERROR
On Wed 20/06/2012 04:07:12 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini062012-09.dmp
This was probably caused by the following module: pxhelp20.sys (PxHelp20+0x11C4)
Bugcheck code: 0x1000000A (0xFFFFFFFF805D5107, 0x2, 0x0, 0xFFFFFFFF805D5107)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\pxhelp20.sys
product: PxHelp20
company: Sonic Solutions
description: Px Engine Device Driver for Windows 2000/XP
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: pxhelp20.sys (Px Engine Device Driver for Windows 2000/XP, Sonic Solutions).
Google query: pxhelp20.sys Sonic Solutions CUSTOM_ERROR
Edited by HDL, 18 July 2012 - 10:23 AM.