I cant find the Arduino port int Device Manager and in Ports in Tools Menu. There are only 2 ports in the Ports section - COM1 and COM6. I tried using both, but it didn't work. I also tried the Loop-Back test(with both ports) - everything worked, except the parts where the message is supposed to echo. Can anybody help, because I wasted a lot of time searching the internet for a solution, yet I couldn't find a problem similar to mine.