EtherREGEN: Installation, Usage, Difficulty, Questions thread

[The Computer Audiophile]

Just thought I'd pass along some direct evidence that a 100 Mbps switch can be beneficial in HiFi.

 

First a little background: I have a complete Ubiquiti UniFi network with gigabit fiber running into my house from the street and gigabit fiber to all my switches. Audio components can connect to my network via fiber (Sonore, Lumin, etc...) or copper. The network is very fast and configured for optimum performance. 

 

I have a DAC/streamer in for review right now that runs its own OS and music library software etc... I tried to get it to scan my 300,000 track library stored on my NAS, but it ran into so many problems I nearly gave up. The problems weren't the same every time either, making the level of frustration increase each time. The usual suspect was that my network had something wrong. Fortunately, a smart engineer at the company suggested that the network may be too fast. I immediately set the copper switch port, that this device was connected to, to 100 Mbps and started a rescan of the library. The entire scan of 300,000 tracks completed without an issue. This scan previously stopped at 12,000, 15,000, 30,000, and 35,000 tracks and caused the DAC/streamer to just drop off the network and require a reboot. Now, it works flawlessly on a 100 Mbps port. 

[The Computer Audiophile]

5 minutes ago, further said:

Superdad,

 

I have had my eR since the end of February and have been happily and sucessfully utilizing in A>B with RJ45 cables inputting to a microRendu and then USB to DAC.  I will soon be adding a Lumin X1 to the mix and would like to utilize optical in to the Lumin X1 and hopefully be able to correctly also run copper to the microRendu by reversing eR B>A.  Before ordering complimentary items for the  Lumin X1, I thought it best to run this by here to make sure I am on the right track.

1. Running B>A, is it advisable to utilize both the Optical and RJ45 "A" connections if my LPS  for the microRendu and for eR is separate and both running to an audio device, not a computer or NAS?  LPS-1.2 is powering microRendu and 12Vdc from SOtM SPS-1000 is powering etherREGEN without other units running from the SPS-1000.  
2. If this is acceptable, should I also run a ground wire from the eR?
3. Lumin says to use Single Mode Transceivers for the X1 and on a Lumin forum suggested these, https://www.amazon.com/dp/B00U8PN0NQ/?coliid=I3RP0WGFHIRELY&colid=2XPPCA6G9B2GZ&psc=1&ref_=lv_ov_lig_dp_it  Do you see any compatibility issue with the eR and using these?
4. I saw this cable also suggested on the Lumin forum,https://www.ebay.com/itm/3m-SC-SC-duplex-9-125um-Corning-ClearCurve-single-mode-bend-insensitive-fiber/232757309790?hash=item36316ab15e:g:ixgAAOSwcJ1a7Oct:rk:1:pf:1&frcectupt=true  .  Does all of this look to be a compatible solution?

I appreciate guidance on this.  Thanks.

 

I used the following with the Lumin X1

 

SFP - https://www.amazon.com/U-Fiber-Single-Mode-SFP-1G/dp/B01N4KWOI1/

 

Single Mode fiber cable - https://www.amazon.com/gp/product/B01MYOJVKD/

[The Computer Audiophile]

5 hours ago, JohnSwenson said:

There is also another possibility, we have found that NAA can do weird things if the port on the computer that is running HQP is gigbit, but a switch along the way converts to 100M (such as the ER) flow control is turned off and problems in playback occur. What seems to be happening is HQP sees it is connected to a gigbit port so it turns off flow control and sends data out in high speed bursts. But with a gig to 100M switch in the path the 100M side can't keep up with the that high speed burst, data is lost, and since flow control is turned off it can't tell HQP to slow it down.

 

IF this is what is happening you might be able to fix it by putting a 100M max switch between the HQP computer and the A side of the ER. That way HQP sees it is connected to a 100M port and sends the data out slowly so it doesn't have a problem when it gets to the 100M port on the ER.

 

John S.

Or, if the HQP system runs on an OS allowing one to set the speed of the NIC, setting it to 100 Mbps should be fine.