As someone who has worked in an associated industry (Tv and Radio repair) I understand the frustration on both sides of this fence. However the reason for a "scripted" approach is twofold.
One. it allows the service team to expand their knowledge of a particular set up and transcribe the information for future problemsolving/product advancement.
Two. It avoids temporary solutions in favour of a bespoke service for your particular needs.
As an example. read through the manual (first page to last). What is not seen there is that virtually the whole of the modern processor working set is network service based (even for applications that do not make network calls the function and instruction sets are similar/same).
The "script" may not be helpful to you personally on this ocassion, but in time it will lead to a quicker resolution process.
On another note and with respect to the contributors who feel this is solely Apple's problem, I disagree. The end user has to have some responsibility for causality. As a rudimentary example. Windows XP to Vista. Following users recommendations they changed the desktop/Explorer functionality, though they left the end user a choice on which to use. It caused a great deal of problems with the way various functions and tasks were grouped, and, due to the change of security permissions and the new security template format, left many grasping at straws when trying to accomplish tasks that they had found very easy before.
as an out of the box experience, I personally cannot fault the product (iPad2)and except for hardware failure/faults, find that it does exactly what it says on the tin.
But having cross referenced a lot of the problems in this forum and elsewhere, it is clear to see that 90% of the solutions are already on Apple's Support pages already.
in many respects apple are in a no win situation. They are reliant on thrid party equipment manufacturers to produce hardware/software that is seamless for Apple's products and user friendly, together with having to code and restructure their products for diverse set ups and hardware.
Yet where they have also tailored a range of products to accomplich everything, they are then maligned (usually for product cost) for producing a seamless experience centred on just their own products.
If users are frustrated with Apple because their set up is only one utilising Apple products I can fully appreciate and concur with a sense of a lack of due diligence and product/service professionalism on their part.
However, with even the best will in the world, it is just not possible, or reasonable, to expect them to produce a seamless experience across platforms that in all honesty may be made up of old, obsolete,or dated hardware and software.
Bottom line. Apple are responsible for their own products. They are not responsible for everyone else's. End users have to accept some responsibility for the choices they make and if that means tweaking various setting in routers. adapters then that is something that comes with those choices. If a third party manufacturermakes is clear in their documentation that adjustments may be necessary, it is unfair to blame Apple if it does not work the way you want.
Try the adjustments. Contact the third parties to ensure software updates, check for known problems product recalls, known bugs, etc.
If everything is in order and there is still a problem - only then should you be having a pop at Apple for what you feel is something less than what you expected.
Please note that my view here is not aimed at anybody in particular and I hope no one feels offended by what I have said. I am just trying to be objective about things I have experienced myself, and what that same experience has shown to be the case in the majority of cases. More often than not, it is indeed "operator error' but I do mean that in the kindest way possible.
For those here I do sincerely hope that your particular problems are resolved. But please let's have a little less "kick the donkey" in Apple's direction. Their service is superb when compared with a great many other operators in the market.