为什么此LAN设置（RJ45 CAT6A插孔中的RJ45 CAT7连接器）不起作用？

我有一个预先安装了八个CAT6A插孔的媒体盒（至少上面印有CAT6A）。以太网电缆（橙色）引到公寓的不同房间。

“ FRITZ！BOX / Homebox电缆”路由器只有四个RJ45插孔。我的目标是使用NETGEAR ProSAFE GS108Ev3交换机将所有CAT6A插孔收集在单个局域网中（也可以通过课程路由器启用WAN）。

我购买了带有RJ45插头（S / FTP PIMF）的CAT7千兆以太网电缆，该电缆应向下兼容CAT6A，CAT6，CAT5E等。

However, if I connect the FRITZ!BOX LAN1 port with one of the ProSAFE switch's ports (in this case port1), and then connect the switch with one of the CAT6A ports and furthermore connect my laptop's RJ45 with the RJ45 outlet in the room the CAT6A is leading to it says "unidentified network / no internet connection". What I have noticed is that the switch's port that connects to the CAT6A jack is always indicating the LED that says "10M connection active", even if there is no client connected anywhere. I am not sure if thats normal.

Here is a topology draft for better understanding:

Using this setup, I can neither ping/reach the router (192.168.178.1) nor the switch (192.168.178.2) from the laptop that is in whatever room the orange cable leads to (I have tried different outlets in different rooms).

Even though CAT6+ is harder to break than earlier versions I have noticed that the cables are bent really hard, like you can see in this picture:

I have had broken cables before but the ones in the picture aren't bent as badly as the cables that stopped working properly after being bent too much. Could it be physical failure?

When I connect the router to the switch with CAT7/RJ45, and then connect my laptop directly to the switch using the same type of cable I get a 1Gbit uplink (IP via DHCP) and I am able to surf the web and ping the switch/router or visit the webinterfaces of these two devices.

Furthermore I can see my laptop appearing in the router webinterface's network connection tab like so:

The general settings for the NETGEAR ProSAFE switch look like this:

And the port status tab shows that everything is normal as soon as I bypass the CAT6A jacks with the orange cables (I'm not sure if its really CAT6A cables, I can not read the imprints):

Did the electrician do a sloppy job or am I using the wrong hardware? How do I connect the four rooms (with a dual outlet of RJ45 each) via the CAT6A jacks in the mediabox?