Thank you! Your hosts file looks clean.
I now see from your video, that you are running Windows on a MacBook.
The emulation layer, or BootCamp might prevent your computer from accessing our licensing servers.
Please make sure you have networking set up correctly.
You should be able to ping the servers with this command:
ping api.cryptlex.com
If you copy and paste rather than snapshot text, I can use a translate program to get the details.
Thanks! By the way, it looks like you have no internet issue reaching the Lightburn validation servers. PING was a success.
It appears the issue is in your PC.
Can you translate that message box in the very first image?
We seem to be bouncing around on issues here. Let us take them one by one.
A. We need 4 things. Home the machine. In the Console window, right-click and clear the window. [1] Enter $$ in the Console window to show your GRBL parameters. [2] Next enter $# in the window to show the work offset settings. [3] Finally enter ? to show the machine coordinates. Now copy and paste the list of parameters in your Reply.
[4] The .lbrn2 program that will not run (in posting #1), can you upload it?
B. Did you pay for the upgrade from 0.9.08 to the latest 2.0.03? I need to know if you are using the Trial for the latest version. You are aware the latest requires a Win10 machine, right? Are we still troubleshooting using a Win7 machine?
Let us work on “A” now to get you going and deal with “B” later.
I don’t understand point “A” 4, what do you need me to upload？
I am referring to the design that would not run here. We need to see your .lbrn2 file so we can determine if you are having a settings or coordinate issue. We also need to see the items listed so we can determine if your design is able to function with your current machine settings. If you do not reply with the information asked for, we cannot help you.
k
]
[OPT:VMZHI,199,511]
Target buffer size found
ok
复位
ok
QC V2.2.
Grbl 1.2h [‘$’ for help]
$$
$0=4.000
$1=25
$2=0
$3=1
$4=0
$5=0
$6=1
$10=3
$11=0.010
$12=0.002
$13=0
$20=0
$21=0
$22=1
$23=7
$24=600.000
$25=3000.000
$26=100
$27=2.000
$30=1000
$31=0
$32=1
$33=1000.000
$53=15
$100=80.000
$101=80.000
$102=800.000
$110=24000.000
$111=10000.000
$112=200.000
$120=200.000
$121=200.000
$122=2200.000
$130=130.000
$131=130.000
$132=50.000
ok
$#
[G54:0.000,0.000,0.000]
[G55:0.000,0.000,0.000]
[G56:0.000,0.000,0.000]
[G57:0.000,0.000,0.000]
[G58:0.000,0.000,0.000]
[G59:0.000,0.000,0.000]
[G28:0.000,0.000,0.000]
[G30:0.000,0.000,0.000]
[G92:0.000,0.000,0.000]
[TLO:0.000]
[PRB:0.000,0.000,0.000:0]
ok
?
<Idle|MPos:0.000,0.000,0.000|Bf:199,512|FS:0,0|WCO:0.000,0.000,0.000>
ok
N.lbrn (10.3 KB)
This test was conducted using a Windows 10 computer with LightBurn version 0.9.18.
On this file your line interval is set to 10mm. That is larger than your letter N, which is. only 4.3mm high. Set the line interval to 0.1 and try again.
I selected the “N” and clicked on Preview. There was nothing there.
I set the interval to 0.08mm (10w dot size) and selected my iCube which has a smaller workspace than yours (120mm). Then I again clicked on Preview and saw the “N” as it should have appeared.
Hint: When you are designing something, and before clicking the Run button, constantly use the Preview feature. It is one of the most important tools in Lightburn.
By the way, some of your GRBL parameters are quite overstated. You do not have to change them, but your machine is likely to never reach those limits.
These are your Homing speeds. You do not want that gantry and trolley blasting into the switches and expect them to not overshoot the stopping point. This is a precision operation, and accuracy improves with lower speeds. I recommend $24=250 and $25=2000.
This is your maximum speed allowed. I seriously doubt your machine can reach this speed in 160mm. Lightburn uses these numbers to compute the job run time, so it is likely you will see times grossly understated. I recommend $110=6000 and $111=6000 for these two.
I thought the $120 and $121 were low, but they are comparable to my iCube machine settings, which is set to 300. If you adjust these up too much, the machine can start making strange noises and/or start having positioning errors.
Now that @thelmuth pointed out the issue, start making stuff and posting it in the Finished Creations section. And have fun! 
Thank you very much for your help, my problem is solved, thank you very much for your patience and guidance, thank you to everyone who helped me. I wish you a happy life
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