[barry]

Hi

My apologies for the time to respond. Sadly, I haven’t had much time to investigate further.

I have now built an openwrt image for my WR902AC V3 with Eric’s patch for the 10Base-t operation. I now have an image working (with LUCI) but the Linn is still refusing to connect using 10Base-t. My laptop works fine at 10Base-t with the new image. More work to do to understand what is going on.

Barry

 

[barry]

Eric,

Apologies, I should have also said that the WR902AC with the new 10Base-t does connect to my PC but not my Linn.

 

[barry]

Hi Eric,

I tried the V3 image as supplied.

The WR902AC attaches to my network but will not connect to the Linn.

I had this problem with the original minimalistic image and had to load the Openwrt V3 standard image to get it to work. I then modified the Openwrt build from there.

Best Regards

[barry]

The improvement when the battery powered WR902ac is feeding the Linn through your ferrite cable is significant. I would not want to go back!

 

Thank you again for your inspiration and guidance.

 

[barry]

Hi Eric,

The Linn NG KDSM.

Barry

[barry]

After stumbling across the difference the ethernet connection to my streamer made, I started researching. Thankfully I discovered this wonderful website which is loaded with information to stimulate my latent electronics knowledge.

 

I initially created the V3 cable and my own ethernet isolation PCB. Both improved the enjoyment of my audio system. However after trying a WR902ac with a power bank I decided to remove the WR902ac onboard 3.3V switching regulator and create a packaged solution that doesn’t look to out of place next to the hifi components.

 

I decided against using the battery output to feed directly into the WR902ac 3.3V rail. Instead I created a PCB based on Walt Jung’s latest 1V reference super regulator. This is a well respected regulator known for low noise, etc. I chose a 6V battery with a capacity of ~6VA to feed the regulator and a compatible charger that charges at approximately the same rate as the WR902ac discharges the battery. I wired the unit so that the unit states were Off, Play or Charge. I did not want the charger active when playing.

 

The unit has been working for about 6 months now in various guises as I developed the 3D printed enclosure. It works extremely well running OpenWRT. A late addition was to add „light pipes“ to take the various LEDs mounted on the regulator, WR902ac and the charger and bring them to the front panel.

 

I have attached a few photos to show the construction. Hopefully this will in some small way contribute to the wealth of knowledge on your website.

 

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[barry]

Eric,

Thank you for the excellent analysis and development of the necessary vide to implement 10Base-T on the WR902ac.

 
<p style=“text-align: right;“>I await the init script release</p>

[barry]

Hi Eric,

I checked through the logs and found a few „unknown error 37′ messages. After trying several tests I decided to reflash the TP WR902ac. I used exactly the same 5G only instructions as used previously (pasted from my Notepad++). This time it worked straightaway. I have no idea why it failed the first time.

Once again, thank you for your invaluable insight into the sound of ethernet. I will post some photos of my implementation when they are presentable 🙂

Barry
<p style=“text-align: center;“></p>

[barry]

Hi Eric,

Yes I have loaded your cut down OpenWRT image on my V3 TP Link. At the moment it is not working. I am trying to debug it and ensure it is not my fault 🙂

I will let you know what I find.

Thank you for the amazing information on your forum which has certainly improved the sound quality on my system.

Best regards

Barry

[Autor]

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