Got it solved. Thanks. I did not change or check anything in the Device Manager. I just assigned the proper Port configuration in the Epever app. Solved
U should explain that more in detail, because that is the way to go. It is not a driver, but a Solar Monitor SW problem.
So here is my case 05/23:
Tracer AN6420,
CC-USB-RS485-150U communication cable (it says on grey cable marking: install CH343 driver),
Solar Monitor Version 1.95,
Tested with Win10 and Win11 works for both the same way.
(1) Connect your Battery to the Epever e.g. 48V (Solar and Load do not need to be connected), u should see some stats on the Epever screen
(2) Connect CC-USB-RS485-150U communication cable, the USB-enhanced SERIAL Ch343 driver should install automatically.
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!! The correct driver is the: USB-enhanced SERIAL Ch343 driver !!
(And no need to set RS485 any check mark anymore! U will not even find it in the driver anymore)
!! Forget about Youtube videos with the old: Exar 21B1411 driver !!
!! No need to install this driver with the CC-USB-RS485-150U cable. !!
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So once u see USB-enhanced SERIAL Ch343 with COM Port number installed in your device manager,
then u know the driver is correctly installed.
(3) Open up the Solar Monitor 1.95 Software. Forget about the add new station dialog, just close it.
If u see a COM Port at the Stationexplorer right click it and delete that COM Port (even it has the same number like in the device manager)
see pic:
Then go to Port Config -> and select the COM Port Number from USB-enhanced SERIAL Ch343 driver in the device manager.
Put Baud Rate to 115200, Parity None and -> hit add (it should show Update successful after that, then exit the Port config, u sucessfully added the COM Port)
see 2nd pic:
(4) Now hit the Solar Plus icon to add a new station in the Solar Monitor 1.95 Software. Make sure the COM port is correct. -> then hit add (u may enter other infos, but up to u,
u should see Num1 or whatever the name of ur station is now.)
(5) Test your station by going in the Solar Monitor 1.95 Software under Parameters->Device Parameters->Device ID Settings
make sure the Com Port is OK, and -> hit Read ID . It should show a 1 (at least in my case)
(6) U are ready to connect to the Epever, choose your station and -> click on Start Monitoring
it should connect and should see some values.
Optional:
(7) For setting LFP settings go to Parameters->Control Parameter->Control Parameter(for LiBattery controller product)