Get out your rubber chicken and mojo hand. I have just discovered the weirdest, most mysterious bug ever encountered.
I signed off on my broadband installation yesterday morning, but later in the day discovered it was messed up. Frequently, the network would freeze up, and, after a delay, the CABLE indicator on the modem would start flashing, indicating (what I believe to be) retraining after loss of signal.
If I left the system quiescent, everything would be fine. Streaming audio would continue to stream. The occasional email message would come through. It was when I did stuff that started creating connections, primarily web surfing, the problem would occur. The problem was highly intermittent, but would eventually be triggered with enough clicky-clicky on links.
Now, here is the scary part. If I point my web browser to E-Bay, the page will not load and the failure will be triggered. No other web site does this consistently, and E-Bay does so without fail.
And if that isn't strange enough, it gets even weirder. This happens only when I use the Mozilla browser. If I use some other browser, such as Opera or Lynx, the page comes up just fine.
I am at a total loss to explain how, under the known physical laws of this universe, such a failure mode could happen. Therefore, the obvious answer is that it isn't happening, and I am just hallucinating.