Q: For four years Ive been unable to use my home network as anticipated. I have ADSL connection with O2, airport extreme, three expresses, two minis 10.6.8 and 10.7.3, and two pros 10.6.8 and 10.7.3, and a cinema thbolt display. Id like to use bbc iplayer.

I am unable to stream video and I lose connection frequently. Ive tried it using wireless connection and with ethernet. Ive tried using the O2 router (%series) as a modem for the extreme, Ive tried using the O2 without the extreme - not poss to extend network but MUCH faster, and Ive tried using a variety of other routrers and modems. My flat is 10m x 6m, there are no other wireless devices within or immediately adjoining except for my wireless landline phone that I have changed three times. Every single piece of my home network has been to the genius bar at least three times and the entire network with all devices has been taken twice. Genius bar have found either no fault or no explanation. Applecare dont seem able to tie their own shoe laces and have been worse than useless, suggesting things like checking a plug fuse (good advice but not relevant). I met a chap socially who turned out to be an apple employee home networking specialist. He offered to look at it and came to my flat. I quote him now: "F**k me, its just not supposed to do tha., Theres something seriously wrong with the system. It's an Apple problem completely". However, despite repeated requests I have not been invited to escalate the issue beyond the genius bar. Enen though everything possible is apple (they dont make a modem for ADSL??), all I get from them is it must be the fault of something else.

PS Ive had my O2 connection checked tens of times and paid for a bt engineer to check my line 4 times.

PPS The thunderbolt display was sold to me after I refused one on the grounds that the location of my mini was more than 2 metres from the display, and the salesperson reassured me that the thunderbolt connection was universally available and that  would have no problem connecting the display to my mini 5 metres away.

I may well not be  too bright when it comes to computers, but with their attitude of there being NO SUCH THING AS A BAD/FAULTY APPLE PRODUCT, ONLY SILLY CUSTOMERS WHO HAVENT WORKED OUT HOW TO USE THEM YET, I wish I will soon see their brand will rot in commercial oblivion ****. I have focused this on home netwrking but that is the tip of the iceberg. However, having invested so much of my life and my money in what I have, please can any of you good people out there show me the foolish error of my simple ways?