My Kiwisdr does not start properly after installing the aluminum enclosure
1.Turn off after 1 second
2.Can start, but can't connect to the network, the D2 light keeps flashing
2.Can start, but can't connect to the network, the D2 light keeps flashing
Comments
Was this Kiwi fully working before you installed it in the aluminum enclosure? Is this a new Kiwi or has it been running for some time before you moved it to the aluminum enclosure? Do you know if the Kiwi had upgraded over the network to the latest software version?
You say it turns off after one second, but also that it starts. Does it do both things at different times? There might be a power supply problem because of the extra current drawn by the fan in the enclosure. Try disconnecting the fan and see if it powers up reliably.
The D2 LED double-flashing is normal when Linux is running. But when the most recent Kiwi software runs a different pattern is displayed. So if the different pattern does not appear within one minute of power-on the Kiwi software is not running properly. Are you getting D2 double-flashing when you cannot connect to the Kiwi with a browser? Does the Ethernet connector have green and yellow LEDs lit? The green LED should blink with network traffic.
Even if you cannot connect to the Kiwi interface from a browser can you ping the ip address of the Kiwi?
After I disconnected the fan, Kiwi started. But I think my power supply is no problem, my power supply is 5.2V3.5A
But now Kiwi can't connect to the network, the D2 LED is always flashing, and the green light of the Ethernet interface is always flashing also.
The result of the ping is that the target host cannot be accessed.
Does windows/linux command "arp -a" have a mac address with the IP address you are expecting?
Obvious other "start at the bottom" question - is the network cable you are using the same as before and have you tried another switch/router port? reseating the connectors or substituting another cable?
Stu
Does the green Ethernet LED flash in a perfectly rhythmic pattern rather than in a broken pattern that looks like it's in response to network traffic? Also, is the yellow LED on? (indicating a 100 Mbps connection). What is the serial number of this Kiwi? (written in the white silkscreen box on the top of the Kiwi board) and where and when did you purchase it?
I ask these questions because Seeed had a batch of BeagleBone Greens some time ago with bad Ethernet PHY chips. There were many failure symptoms, but one of them was a constantly flashing green Ethernet LED even though there was clearly no network traffic. Sometimes this occurred with the yellow LED being off when it should have been on. These are both symptoms of an Ethernet PHY failure.
This is a little involved, but the other thing to try is disconnecting the Kiwi board from the BBG and run it by itself. You have to power it by a connection to its micro-USB connector as the Kiwi board is no longer there to supply power to the BBG. Then see if the network symptoms are any different. Also, now you can place a finger on the PHY chip itself to measure its temperature. It's the tiny little chip directly behind the Ethernet RJ45 connector. The PHY runs warm normally but if it's too hot to keep your finger in place then the PHY has failed.
The serial number of this Kiwisdr is 3764.
Purchased on seeedstudio.taobao.com on January 7, 2017
That chip is shown on the Hardware Overview as "Ethernet PHY" http://wiki.seeedstudio.com/BeagleBone_Green/
Purchased on seeedstudio.taobao.com on January 7, 2019
There is a discovery tool but if you have Java installed I tend to use "angry ip scanner" (angryip.org) as it is quick and you can set it to probe port 8073 or others (tools-preferences-port).
As I didn't get an answer to my previous posts I assume you don't go digging around in your router settings but you could do with finding out what is on your network, checking if the Kiwi is running just not where you are expecting it.
On the top of the Ethernet RJ45 connector, is the manufacturer and part number listed as this?
HanRun
HY911105T
How long is the Ethernet cable between your Kiwi and router or other network device? Is is short, like under 1 meter, or a longer run like 10 meters?
Did you have any significant thunderstorms in your area around the time the problem started?
Was there a possibility of static discharge when you were assembling the Kiwi into the enclosure or when you were plugging in the Ethernet cable? This might happen if you live in an area with low humidity (dry air) or you have carpet in the room where you were assembling the Kiwi enclosure and you were wearing shoes so that a static charge might have built-up on your body.
Do you have a Paypal account? I can reimburse you the full cost if you purchase another BBG from Seeed/Taobao. But Paypal is really the only way for me to make an international payment.
HanRun
HY911105T
18/14
The Ethernet cable between Kiwi and the router is 3 meters long.
At the beginning of the problem, there was no thunderstorm in my area.
There should be no possibility of electrostatic discharge. The humidity in my area is generally above 70%.
I think the right thing to do is to get a new BBG. I am happy to reimburse you the full costs of that if I can find a way to pay you. Or I can purchase one on the external Seeed site and have it shipped to you directly. But I don't think this can be used to ship internally to China (I'm not sure where you are).
I'd get a couple of a Ethernet to Fibre adapters and do it that way 100m is a lot of copper to pick up noise.
Obviously once you fibre "Distance" is " many km depending on optical units" (the real cheap stuff is normally good for 300m).
You could try a quality switch at the KiWi end just see if the cable is up to it then try the Kiwi via the switch, I doubt it is the BeagleBone at fault if the cable is good.