Driver_irql_not_less_or_equal

Hello TS, I am completely new in here, and I know very little about computers.
So forgive me for any beginner faults.
My problem is that while connected to internet using DSL modem the blue screen suddendly appears saying besides the rest as follows:

DRIVER_IRQL_NOT_LESS_OR_EQUAL

Tecnical information:
*** STOP: 0x000000D1 (0x9CF19386, 0x00000002, 0x00000001, 0x82783F9B)

Beginning dump of physical memory

Out of the above four numbers in the brackets the first and last number change e.g. (0x2D330950, 0x00000002, 0x00000001, 0x826F595A)

This thing never happens while connected to internet through local network (have tried within office/company network).

I didn't find anything in the event viewer but have attached minidump file that is created every time this occurs.

Anyway, any help would be greatly appreciated. Let me know if more information is required. Thanks in advance!

That dump's crashed at a sound driver. You'll need to supply some more minidump files for further analysis (4 or 5).

BugCheck 100000D1, {9cf19386, 2, 1, 82783f9b}
Probably caused by : RtkHDAud.sys ( RtkHDAud+195ada )
Image name: RtkHDAud.sys Timestamp: Wed May 04 17:18:22 2005 (4278935E)

Many, many thanks for your help.
Anyway, here is another minidump file, but since this not happen offten and don't know how to provoke it, I will need some more time but please don't forget me. Meanwhile shoul I update the sound driver or what?
Thank you

Hello and welcome to Techspot.

Your second minidump also crashes at your realtek audio drivers.

You should try updating the drivers, from your mobo manufacturers website.

Regards Howard :wave: :wave: