Problem with FlexRadio 6600 and Maestro console

Hello Guys,

About 3-4 months ago I purchased a brand new FlexRadio 6600 and Maestro console from Martin Lynch and Sons - Ham Radio Store in the UK. The equipment arrived safely, very well packed and without any problems.
After installing my brand new radio shack, I started to face some problems with the Maestro. When I rotate the VFO knob, the frequency doesn't change properly. I did a lot of test but the problem was still there. In the beginning, I used a professional Cisco managed gigabit switch. The first thing I did was to setup all the ports to 100Mbits but the problem didn't disappear. Then, I did tests with about 9-10 different managed and not-managed switches and routers, all of the different brands. The result was always the same. I rotated the VFO knob but the frequency didn't change dynamically and the whole Maestro's interface response was slow.
However, due to my business activities I went to a trip and came back a few weeks ago.
In the meantime, I started to have a doubt that this is a hardware malfunction of my Maestro. I spent a lot of my time in the shack trying to find out what was the problem. Unfortunately, I was not able to find anything that may cause it.
Finally, I decided to purchase a second brand new Maestro. After a week, the new toy arrived. First thing I did, was to check the serial number which was absolutely different than the serial number of the first one. It looked like a different production batch, so I hoped that if it is a production problem, it won't exist in new production run.
I was absolutely disappointed, when I saw that the new Maestro acts in the same absolutely unacceptable way like the first one. I decided to discuss this with a friend of mine, Boyan - LZ2BE who purchased from another vendor his 6600 and Maestro at around the same time, when I bought my setup. He shared with me, that he is having the same problems with his 6600 and Maestro. As far as I know, he already opened a ticket but there isn't any progress with solving this case.
So I am curious if this is a hardware problem in all Maestro units running in Bulgaria or it is a software problem that the guys from Flex can solve with firmware update of the Maestro consoles?
Is there anyone with the same problem as me? If so, can someone give me an advice what to do?

73! de LZ3CB

Видео Problem with FlexRadio 6600 and Maestro console канала Todor Ivanov - LZ3CB