Re: USB / Serial and WIFI connection #Mach2GTO

Roland Christen

Hello Dominoque,

here is the answer from our software engineer:

I cannot say what is happening.  There is no logical interaction between the USB and the WiFi.  It makes no sense, not something we’ve seen.  Only explainable it there is a RF environment/interference problem.
There are a bunch of questions to consider:
Are they powering the unit from a battery or from a bench power supply (potential ground loop)?
Does the behavior change if the laptop power supply is disconnected, and run only on batteries (potential ground loop eliminated)?
Does the Access Point re-appear if the USB is unplugged, or does it require a power cycle to recover the Access Point?
Are they looking for the presence of the Access Point on the same PC they connecting to USB, or are they looking at the Access Point on a cell phone (PC setting or FTDI driver problem)?
Are they trying to use the equipment in the field, or do they have internet access available?  If internet access is available, it means there is a router, and they should be connecting the CP5 to the network, not connecting something to the CPx Access Point. 
Is the WiFi antenna tangled up in harnesses to the mount (guaranteed RF problem)?

-----Original Message-----
From: Dominique Durand via <dom33.durand@...>
Sent: Fri, May 29, 2020 10:13 am
Subject: Re: [ap-gto] USB / Serial and WIFI connection #Mach2GTO

On Fri, May 29, 2020 at 04:29 PM, uncarollo2 <chris1011@...> wrote:
Yes, it is possible to have both active at the same time.
I also believe it Rolando, because I am sure that with my mach1 GTOCP4 it worked. But how? There I do not understand, when I connect the USB cable to my PC the GTOCP5_Net_25 network which was displayed in my WIFI networks disappears.

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