[mythtv-users] Sudden issue with HDHomeRun on network switch?

[Tom Dexter]

On 3/15/19, Tom Dexter <digitalaudiorock at gmail.com> wrote:
> On 3/15/19, Simon Hobson <linux at thehobsons.co.uk> wrote:
>> Tom Dexter <digitalaudiorock at gmail.com> wrote:
>>
>> ...
>>> I have no idea what to make of that at all. I can only think that
>>> maybe the switch is going bad(?)
>>
>> It does sound rather like the switch. They can fail in "interesting" ways
>> -
>> I've had them "sort of" stop passing packets reliably, as in passing some
>> packets but not others !
>>
>> Certainly in a case like this, the obvious thing to do is swap the switch
>> and see what happens.
>>
>> The fact that some devices work and others don't could be simply down to
>> slight variations in how the protocols are implemented. Behind the scenes
>> there's actually a complete (albeit relatively simple) signalling
>> protocol
>> to allow the two ends to negotiate a link between them.
>> A few years ago we had a customer with 2 sites with a road in between. We
>> sold them an optical link which turned out to have an "interesting"
>> design
>> feature which meant that it didn't work with all switches. The people who
>> supplied and installed it for us couldn't tell us what the issue was -
>> but
>> we eventually tracked down that these units didn't negotiate the link
>> properly so they would only work with managed switched where the port can
>> be
>> hard configured to a specific set of link parameters.
>>
>>
>>> Any recommendations are welcome. I was looking at a Netgear GS316
>>> which seem to get pretty good reviews.
>>
>> It's looks like it's a variant of their GS1nn models. I've always found*
>> the
>> [FG]S1nn models to be very reliable, so I'd have no hesitation in trying
>> the
>> 316.
>>
>> * With work hats on, I've known a lot of networks run on them.
>>
>
> Thanks for the reply! I think you're right on all that. I've had my
> existing switch for quite a while and it was really cheap. I might
> just go ahead and get that Netgear. Thanks for the recommendation!
>
> Tom
>

Just to update on this one: As long as I kept the problem HDHR on my
router instead of the switch it worked perfectly. In fact the
occasional failed recordings I've had for a while appear to be a thing
of the past.

Today I got a new switch...went with an 8-port Netgear GS308-100PAS.
That's now hooked up and both HDHRs are working perfectly connected to
it. So yea...switches can do some seemingly arbitrary stuff for sure.

Thanks everyone for the help!
Tom