Problems with my wired network connection

[iusefree]

I may have a much simpler answer. I was having all sorts of issues with Ethernet. I simply invested in a new power adaptor and the problem went away. Just try one out first before doing anything else.

to sort it out you plugged in a different power adapter than the stock and ethernet still works when TV is off or HDMI unplugged? if yes, can you give as the adapter link or specs?

cheers

[oversx]

In Windows (Davicom USB) network adapter is removable devices! There is a problem.


Just testing Lubuntu 14.04.2 (32-bit, kernel 3.16.0-31) that I have installed 16GB USB flashdisk. I have compiling drivers LAN + WiFi and introduced modules dm9620.ko + r8723bs.ko. The network works and having installed VLC, everythings O.K.

[iusefree]

its probably the Intel driver issue. Will unistall and use the windows driver instead - that will fix it as am reading other forums as well.

[useless]

to sort it out you plugged in a different power adapter than the stock and ethernet still works when TV is off or HDMI unplugged? if yes, can you give as the adapter link or specs?

cheers

YES - I just used a 12V 2.5A adaptor I had at home similar to this (not the same model)
http://www.****.com.au/itm/12V-2-5A-...item1e7e9f51de

[iusefree]

YES - I just used a 12V 2.5A adaptor I had at home similar to this (not the same model)
http://www.****.com.au/itm/12V-2-5A-...item1e7e9f51de

will give it a try then, thank you

[oversx]

I played movies in Linux four hours and everything worked. No disconnection of the network.
Drivers for Windows are bad (and are updated to the latest).

Edit: In Linux with HDMI connector may disconnect and network connection works! Sleep mode is functional and going to wake up the wireless keyboard! Network throughput over iperf is 94Mbit/s!

[oversx]

Just set "ConnectionType" to "100Base-TX Full_Duplex" and network O.K. (Win8.1 + Win10 b10041).

[vertical]

Just set "ConnectionType" to "100Base-TX Full_Duplex" and network O.K. (Win8.1 + Win10 b10041).

Are you sure you changed only that and it was fixed? Because I changed it but the ethernet stops working as soon as I switch off the amplifier.

[oversx]

My Pipo disconnected from the network during movie playback, now its O.K (using 100Base-TX Full_Duplex). If you disconnect the HDMI in Linux its O.K as well, in Windows LEDs flash (do not go off), but the network is disconnected. Drivers in Windows are bad.

Edit: PCB v 1.3
Video:
Left monitor is connected to Pipo (Lubuntu 14.04), right is Win8.1 connected via VNC to Pipo. After disconnecting hdmi is network O.K. Movie is playback over a network.

http://89.29.66.22/pipo.mp4

[Guest]

My Pipo disconnected from the network during movie playback, now its O.K (using 100Base-TX Full_Duplex). If you disconnect the HDMI in Linux its O.K as well, in Windows LEDs flash (do not go off), but the network is disconnected. Drivers in Windows are bad.

Edit: PCB v 1.3
Video:
Left monitor is connected to Pipo (Lubuntu 14.04), right is Win8.1 connected via VNC to Pipo. After disconnecting hdmi is network O.K. Movie is playback over a network.
http://89.29.66.22/pipo.mp4

Yes but that's because the Pipo is busy. With some tasks.

I bet when you close the movie, and the Pipo is running idle the connection get lost.

[oversx]

If you do this in Windows, so the network disconnects. On Linux works ping even after disconnecting HDMI (always).

[loko]

Since I just received my units last week, I haven't really dealt with this issue yet.

I can confirm that the problem exists. Here is how to reproduce this problem. I think that accurately reproducing this problem can be the base for the solution, since you can try any changes over it.

Use Wi-Fi to connect to your access point and make sure that a proper IP Address is already assigned to your Wi-Fi Adapter. Do not connect any wire to the Ethernet port.

Download TeamViewer Portable from the official site, and extract it to any folder. TeamViewer Portable can be both used as a Server and a Client, and supposedly leaves no traces in the computer.

Run TeamViewer.exe and make sure that you allow incoming and outgoing local connections in the Windows Firewall. In the main TeamViewer menu, click Extras and select Options. Under General, Network Settings, Incoming LAN connections, select accept exclusively. Your ID is your current PiPo X7 IP Address. Your Password is a randomly assigned 4 digit number that changes every time you run TeamViewer.

Repeat all TeamViewer Portable configuration steps to another computer in your local network. Since you don't intend to use TeamViewer as a Server in this computer, disregard Your ID and Your Password fields. To use TeamViewer as a Client and connect to your PiPo X7, manually enter under Partner ID PiPo X7's current IP Address and select Connect to partner. You will be asked for PiPo X7's currently assigned password, and the connection will be successfully established.

If you want to have complete remote control over PiPo X7 and its settings, you have to run TeamViewer Portable as Administrator in PiPo X7.

In PiPo X7, open Control Panel, Network and Internet, Network and Sharing Center. Click on Change Adapter Settings to open Network Connections, where you will see both Ethernet and Wi-Fi Adapters being listed.

While using TeamViewer to control PiPo X7 from your computer, close your TV and unplug the HDMI cable from PiPo X7. The Ethernet Adapter will disappear and reappear every second in the Network Connections window, and you will not be able to properly control PiPo X7 until you replug the HDMI cable.

The Ethernet Adapter will be initialized every time it reappears in the system as a "DM9621A USB To FastEthernet Adapter(KMDF)" device, having a "USB\VID_0A46&PID_1269&REV_0101" Hardware ID.

In the case that you replug the HDMI cable while the Ethernet device has not been fully initialized, which is happening every second, a "DM9621A USB To FastEther" device with a random Hardware ID will appear in the Device Manager. Do not bother installing drivers for this device, because it will disappear the moment you reboot your device or unplug the HDMI cable, and since the assigned Hardware ID will be random and will change every time this malfunctioning device will reappear, there is no need to install any drivers for it anyway.

[no_spam_for_me]

So it means this is the quintessence:

... close your TV and unplug the HDMI cable from PiPo X7. The Ethernet Adapter will disappear and reappear every second in the Network Connections window, and you will not be able to properly control PiPo X7 until you replug the HDMI cable.

The Ethernet Adapter will be initialized every time it reappears in the system as a "DM9621A USB To FastEthernet Adapter(KMDF)" device, having a "USB\VID_0A46&PID_1269&REV_0101" Hardware ID.

In the case that you replug the HDMI cable while the Ethernet device has not been fully initialized, which is happening every second, a "DM9621A USB To FastEther" device with a random Hardware ID will appear in the Device Manager. ...

Did you also recognised anything at USB itself (because it's really "funny" if only the USB2eth adapter effects from the unplugged HDMI)?

[virusX]

Here are the steps I've done in order to have no more ethernet connection issue:

- Changed the Power Supply but I'm not sure it helped much as my PSU is a crappy 9V/1.5A
- Result: I still had issues but I will buy a good 9V/3A PSU.

- I changed the Connected Standby mode via regedit: HKLM\System\CurrentControlSet\Control\Power\ then set the value "CsEnabled" from 1 to 0 to get full options in Power Settings.
Then I modified the Power Settings to keep awake everything.
- Result: I still had issues with ethernet but my USB external HDD felt better
Also it's possible that it corrected another issue I had: while unplugged from HDMI for a while, the X7 was then unreachable.

- I added a HDMI switch (unpowered) between the X7 and my TV (I know... weird workaround)
- Result: that helped a lot in fact, I didn't get disconnected when unplugging the HDMI cable but I still had some issue when manually turning off ethernet adapter and leaving only Wifi (adapter was disappearing/appearing from windows).

- I changed options of the internet cable to ConnectionType in "100Base-TX Full_Duplex".
- Result: That solved the previous issue.

So now I have a fully functional ethernet network thanks to the hints from everyone here.
I'll test to put back the original PSU, and change those steps options one by one to identify if there's some unnecessary steps.

I also will receive a HDMI to VGA converter soon and will report if any change.

Team Viewer is installed just to remotely monitor the X7.

[loko]

Did you also recognised anything at USB itself (because it's really "funny" if only the USB2eth adapter effects from the unplugged HDMI)?

I have already disabled Connected Standby by changing the CsEnabled value from 1 to 0 and restart, selected the High performance power plan, and disabled all power saving related features in the Device Manager. These changes did not solve the problem.

The USB Ethernet Adapter seems to be the only device affected. A USB Flash Drive works fine at the same time. For what it is worth, I do not have any cable plugged to the Ethernet port.

If you look at the Safely Remove Hardware and Eject Media icon, you will notice that the USB Ethernet Adapter is considered as a removable device.

This situation does not have to do with Ethernet power saving settings. The USB Ethernet Adapter itself is disconnected and reconnected, like someone is unplugging and replugging the device continuously. This can be due to insufficient supplied power, probably by a bad hardware design, or some other weird situation.

Since I have already plugged and unplugged the HDMI cable about 50 times, and I do not want to wear out the HDMI port, I will stop further testing until I get an HDMI adapter.

To be able to conduct further tests, I also installed the open source RDP Wrapper Library v1.5. Now Remote Desktop Connection between PiPo X7 and a Windows XP installation runs just fine, so I can opt between TeamViewer and Remote Desktop Connection. I have also installed UltraVNC, but once more I found it somewhat laggy for my taste.