All,
while I totally understand the frustration that some of us raise here, may I suggest that we, for a moment, try to remain productive. Whether it is a failure on Apple's part or not is relatively irrelevant to me, as I am, depreciation-wise and because I otherwise really like them, in a lock-in position with regards to the devices I have bought, in other words, yes, there is something clearly not working, but no, that does not mean that nothing is working. In particular, as someone said, his MBP now being useless only because of the non attached mouse not working: After all, it does clearly work with the built-in trackpad. Yes, it does not work the way we should like it to work, but there are workarounds.
To the point of workarounds, I should like to ask whether actually anyone else has ever tried the approach that I mentioned in my last post, i.e., using an el-cheapo bluetooth dongle - the one I am using is an about 10 $ CSR8510 based USB device that I plugged to the back of my 27'' thunderbolt display - and also to invest the other 10 $ if you have any USB 3.0 cables there, and replace them by well shielded ones.
Because, for all it is worth, these steps have for over two days now entirely remove the issues. I had had the impression of getting rid of the problems by other measures, just like many others in this discussion had experienced, only to see them re-emerge after a short while. That short while was always less than a day, and I am now substantially past that.
So, just my suggestion, rather than wasting time, energy and nerves on the issue, and even buying a new Time Capsule as the user warszaw did, just bite the bullet of risking 10 $ on an additional bluetooth dongle - and perhaps some better USB 3.0 cable - and verify (and report) whether the problem goes away.
Yes of course it ***** if you have already a Bluetooth module in your Macbook. But on the other hand, what ***** more I feel is wasting time on things only because we'd like them to be different, if making them work costs nothing, compared to that.
And of course, if you get substantial evidence, the American faction can then document the issue, create a class action case, earn millions and retire to some islands with no bluetooth interference whatsoever.
Just my 2c,
M