@sbkp wrote:
The firewall is off — what makes it not (seem like) a firewall issue is that it works, and then it doesn’t.
Now, I seem to have sorted it by upgrading the firmware on my router. I found a reference somewhere that IGMP should be disabled. I couldn’t find any way to do that on my router, so I found new firmware, and there on the main admin page: IGMP Enabled/Disabled.
The reason I’m not celebrating just yet is that the problem has been intermittent at times. But so far so good (fingers crossed, knock wood, etc).
Thanks.
Actually, should have iGMP enabled.
— Ron