Everytime I try to connect to my pc it says Opening port then it sits for a minute then it says closed please help
Mine is doing the same can anyone help ? I have installed the drivers that come on the SD card but an error comes up.
I have no solution to your problem except using the sd card instead, or do you need to directly connect it to the printer? 
What computer operating system are you using? I assume you are trying to connect using USB? Let me know - chances are I can assist.
Windows 10 and thrpugh the provided usb
And most importantly what software are you using to slice/communicate with your printer?
I am using Windows 10 and Cura software, before my thread got hijacked lol
Yes also through the provided USB cord that came in the box
I have been to the software website as well
Try removing the jumper 14 on the control board. I also had issues establishing a connection with my computer and this made it work consistently since. It requires you to open the control box which can be a bit tricky the first time.
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I am really brand new to this, This is my first Printer and I dont know if thats a good idea for me lol. I got the Test print to print great but I cant get anything else to print right since , the first thing I tried to print was a wheel to help with bed leveling because those wing nuts are a pain in the ass. Im going to re-level and try again tonight after work.
OK - I agree - don’t start opening boxes (yet). Start at basics.
1. Open Device Manager in W10 - go to start and type in Device Manager (in Control Panel) in search window. Open DM and go to the top drop down menu View and select Show Hidden Devices
2. Ensure you have Ports (COM and LPT) available and dropping down from that USB Serial Device - usually COM3 but not always. Open this up and check the Baud rate
3. Open Cura and under Machine drop-down go to Machine Settings - check the Communication settings match your DM settings - try to connect.
4. If this doesn’t work - real simple - try a shorter and guaranteed known working USB cable - Cura is very picky over its serial connections
Let me know how you get on.
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The Printer is showing on Com 4 , Its the only available choice in the cura drop down menu. I did check and change the baud rate yesterday. Still no connection. I guess until I figure it out I will use the Micro sd. The second problem like I mentioned is No Other filament but the test print stuff has worked, I had some promising results with the wood PLA stuff I purchased but I think the bed needs leveled again. I am not ignorant to technology I taught myself to build my last PC so I know I can do this lol.
This is the answer. Try this and it should work fine.
3DVest
17
I’m not connected directly to my PC, but on the Wanhao i3 I would recommend buying a Raspberry Pi and install OctoPrint. Then you will be able to access the printer from not only this PC, but also other PC´s in the network. And online if you open your router for it.
The Jumper thing? Im not sure how this forum works yet lol.
And if it is the jumper, how do I know which one is the right one?
There is also a lot of information at http://3dprinterwiki.info for those that haven’t found that yet and the FB page.
