Thanks for the prompt reply. Yes it shows drops in communication. See attachement.
can you some me the stats from the end of the ping? what is the percentage dropped in something like 1 min?
just a few seconds. I am now scanning my Batrium BMS, that is in the same network and about 2m further away. It shows no drops during writing this response:
Check the EVCS webpage, settings. scann period - what do you have in there? try again with â0â
every 60s is scanning for better wifi networks . That can cause that request timeout. If you have only one network, disable scaning by putting 0 in there
Why is the CP-calibration selection not visible (V2.05)?
good! - it is explained in the manual - 5. Setup, configuration & operation
calibration - because the EVCS is doing that autmaticaly every time the charging cable is connected. This was added in 2.02. You can find it in the change log
I have bluetooth turned off and only connect through WiFi. I do not have the calibrate option in the webinterface. Is that normal?
Iâm not sure I understand your question. Since autocalibration was introduced, there is no manual calibration available in the webpage, as I said above.
But this topic is about something else, letâs not fill it with all kind of questions.
Clear.
Thanks for your effort on the communication effort.
I will follow up in the coming days if communication remains stable.
JOhn
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Thank you for your comment . âPoor implementationâ doesnât mean âwrong implementationâ.
Quote: âthatâs not corect, if the AP is configured for modes that are not supported by the EVCS, there is nothing we can do on the EVCS sideâ
I would totally agree with you, only if the data sheet would describe clearly the points of attention, and the limitation of the protocol implementation within the EVCS.
Which was never done AFAIK. And you know, this is a bit awkward, but I have plenty of cheap chinese ESP32 based devices, connected to the same AP, and working perfecly. But NOT the EVCS. Meaning clearly that there is something unclear on the EVCS ESP32 implementation.
Moreover, when using the FiberBox from the provider (Orange) there is nothing I can do to configure anything specific as to the Wireless connectivity and protocols.
It would have been wise from Victron to simply mention âuse only 2.4GHz singleband band dedicated wifi - no dual band - no Mesh or soâ, I would have save a lot of time.
To be very honnest, if I would have know all the issues around this connectivity, I wouldnât have purchased the EVCS.
I have been waiting 6 months for the âpromisedâ new EVCS with Ethernet on board, but it looks it was only promises⌠After 10 months, still no light at the other end of the tunnel.
Unfortunately, I can just observe that if your product is not suitable for some use, you start blaming the customerâŚ. Is this a productive behaviour ? Up to you to decide 
it is mentioned that it supports only 2.4GHz
where was the customer blamed??
It seems you are trying to point the finger at the âcluelessâ user for not knowing the product limitations, which are not mentioned anywhere in the datasheet. In fact, the EVCS works perfectly with some Wi-Fi configurations (such as the one I tested and recommended to assist your customers), but not with others.
I tested three other standard access points (Netgear, Asus and TP-Link), which produced the same disappointing result as the Orange AP (of which about 1 million units have been deployed).
It seems that the EVCS fails when there is a mix of 5 GHz and 2.4 GHz, although I cannot be fully certain about this. Based on my own tests , the EVCS started to work when the AP offered 2.4 GHz (ONLY). You are right that the user manual mentions 2.4 GHz, but no other restrictions. What can I do? What can I say? It seems to me that the protocol has been poorly implemented in the EVCSâ ESP32.
No one would expect a professional Wi-Fi client such as EVCS to randomly work with some access points and not others, based on unknown rules or a lottery. Itâs even less likely that the manufacturer would argue that the customer is not using the âproperâ access point. Sounds crazy!
There are hundreds of messages on this forum (and others) about EVCS Wi-Fi connectivity issues.
As far as I know, Victron has never provided clear explanations as to why (never mind, now) At least I have found a solution for myself and documented it in the hope that it will help other users. Please donât blame me for this.
I will probably stop this unproductive discussion now. Have a good day! 
It is hard to provide a solution since there are hundreds of router brands and each one having different models, each one having different settings or different names for those settings. But yes, if the router is trying to mix both frequencies, it is not going to work. And thatâs why we have the community, you sharing your results can help the others. The discssion is productive, no worries!
Thanks! turns out there was a setting called roaming assistant which would disconnected devices from the router if the signal strength was too weak. Even though the signal strength was more than sufficient for the EVCS
Thanks for sharing the solution!!
Now after some time, I have checked the communication at several moments.
With all modifications made with the WiFi settings, the communication is stable. I have not noticed any communication drops anymore.
Thanks Victron