Ethernet adapter (ENC28J60) disconnecting (SOLVED)

[msghmr]

Edit: my problem is solved - it was under-voltage from the Discovery board. 3.3 volts labeling in the schematics is not accurate for the F4Discovery board - it's closer to 2.8 volts. Connecting to 5 volts with a 3.3 volt regulator did the trick. 

Hi, everyone! I LOVE my seq and I'm really impressed by this supportive community. I'm having an issue with my ENC28J60-based ethernet adapter, I bought this one:  https://www.amazon.com/gp/product/B00GAXAQOQ/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 . It is able to get an IP address over DHCP, but if I try to play anything over OSC, soon after it loses its IP address. If I press the button to get an IP, it tells me the ethernet adapter is no longer connected. It will keep its IP address as long as I don't try to play anything.

Any ideas? It has done the exact same thing with two different of these ENC28J60 adapters. Thanks for your support! I tell everyone how amazing this sequencer is, and people who see me play it are totally jealous. Any ideas you have on this are greatly appreciated. Photos follow.

 

 

 

Edited June 11, 2019 by msghmr
Problem solved

[msghmr]

[2839047.162] network
[2838035.886] Ethernet cable connected: yes
[2838035.886] Ethernet MAC address: 00:30:37:32:34:31
[2838035.886] Ethernet services running: yes
[2838035.886] DHCP: enabled
[2838035.886] IP address: 192.168.1.91
[2838035.886] Netmask: 255.255.255.0
[2838035.886] Default Router (Gateway): 192.168.1.254
[2838035.886] OSC1 Remote address: 192.168.1.92
[2838035.886] OSC1 Remote port: 8001
[2838035.887] OSC1 Local port: 8000
[2838035.887] OSC1 Transfer Mode: 0 - MIDI Messages       
[2838035.887] OSC2 Remote address: 192.168.1.101
[2838035.887] OSC2 Remote port: 8001
[2838035.887] OSC2 Local port: 8000
[2838035.887] OSC2 Transfer Mode: 0 - MIDI Messages       
[2838035.887] OSC3 Remote address: 192.168.1.101
[2838035.887] OSC3 Remote port: 8001
[2838035.887] OSC3 Local port: 8000
[2838035.887] OSC3 Transfer Mode: 0 - MIDI Messages       
[2838035.887] OSC4 Remote address: 192.168.1.101
[2838035.887] OSC4 Remote port: 8001
[2838035.887] OSC4 Local port: 8000
[2838035.887] OSC4 Transfer Mode: 0 - MIDI Messages       
[2838035.887] UDP Monitor: verbose level #0

[msghmr]

MIOS32 still shows an IP address after the Seq display says it can't find the ethernet adapter, but it says the cable is disconnected: 
[2839339.061] network
[2838327.770] Ethernet cable connected: no
[2838327.770] Ethernet MAC address: 00:30:37:32:34:31
[2838327.770] Ethernet services running: yes
[2838327.770] DHCP: enabled
[2838327.770] IP address: 192.168.1.91
[2838327.770] Netmask: 255.255.255.0
[2838327.771] Default Router (Gateway): 192.168.1.254
[2838327.771] OSC1 Remote address: 192.168.1.92
[2838327.771] OSC1 Remote port: 8001
[2838327.771] OSC1 Local port: 8000
[2838327.771] OSC1 Transfer Mode: 0 - MIDI Messages       
[2838327.771] OSC2 Remote address: 192.168.1.101
[2838327.771] OSC2 Remote port: 8001
[2838327.771] OSC2 Local port: 8000
[2838327.771] OSC2 Transfer Mode: 0 - MIDI Messages       
[2838327.771] OSC3 Remote address: 192.168.1.101
[2838327.771] OSC3 Remote port: 8001
[2838327.771] OSC3 Local port: 8000
[2838327.771] OSC3 Transfer Mode: 0 - MIDI Messages       
[2838327.772] OSC4 Remote address: 192.168.1.101
[2838327.772] OSC4 Remote port: 8001
[2838327.772] OSC4 Local port: 8000
[2838327.772] OSC4 Transfer Mode: 0 - MIDI Messages       
[2838327.772] UDP Monitor: verbose level #0

Edited June 11, 2019 by msghmr
I noticed it says the cable is disconnected

[msghmr]

I just used a multimeter to test the voltage coming out of J16 -  it's only 2.8 volts instead of 3.3. This really could be why - I'm trying to supply better voltage to the ethernet board to see if the problem clears up.

Edited June 11, 2019 by msghmr
sentence was garbled

[msghmr]

So, the under-voltage issue was totally why. One of my ethernet modules has a 5V input with a 3.3 volt regulator which I had bypassed to connect to J16. I un-bypassed the regulator (so I could connect 5v), and connected 5v from J2 - problem solved. 

For anyone doing this in the future, these ethernet adapters work - but don't bother trying to get 3.3 volts from the F4Discovery board - it only provides barely 3 volts. Use J2 5 volts instead if possible, otherwise use an external 3.3 volt power regulator.