Lost connection when arduino sketch loading

Hello. I like this Program. It is work well when using flash drive.
But when i tried to load sketch to arduino it failed.
This happens like connection lost
usb server in same phisical network (local) Centos 7.5
And client windows 7
I saw forum thread and found that it was bug in versions prior 4.5.5
Can it be same bug for windows 7?

#2

No there is no bug in win7. Is your arduino geninue? Sometimes the chinese copies have poor quality serial adapters.

Does the device always show as "In-Use" in the virtualhere client when you are flashing a sketch? Or does it drop off when the arduino connection issue occurs?

#4

I just downloaded and installed centos 7.6 installed vhusbdx86_64 server then connected my arduino uno to the server.

Then i went to a windows 7 64-bit client pc and then downloaded and installed the Arduino ide. Then i used the arduino via VirtualHere (appears as com port 4) then i opened the example blink sketch and then clicked upload and the uno started running the sketch and blinking the led as expe cted

So basically i think you should update to centos 7.6 or use ubuntu as maybe centos 7.5 has a bug. I notice that 7.5 is not supported anymore anyway