I greet you. A work colleague helped me solve the problem. It turns out that PROXMOX works on a virtual network adapter, and the physical one is a bridge (if I understood everything correctly) and the Physical adapter was renamed when changing the configuration of video cards
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permitted by applicable law.
root@VIRTUAL:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp6s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UP group default qlen 1000
link/ether 90:2b:34:37:8f:8a brd ff:ff:ff:ff:ff:ff
3: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 90:2b:34:37:8f:8a brd ff:ff:ff:ff:ff:ff
inet 192.168.10.10/24 brd 192.168.10.255 scope global vmbr0
valid_lft forever preferred_lft forever
inet6 fe80::922b:34ff:fe37:8f8a/64 scope link
valid_lft forever preferred_lft forever
4: tap100i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr100i0 state UNKNOWN group default qlen 1000
link/ether 1e:ef:b1:a2:6c:22 brd ff:ff:ff:ff:ff:ff
5: fwbr100i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether e6:82:31:99:34:57 brd ff:ff:ff:ff:ff:ff
6: fwpr100p0@fwln100i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
link/ether 62:20:01:f1:b7:12 brd ff:ff:ff:ff:ff:ff
7: fwln100i0@fwpr100p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr100i0 state UP group default qlen 1000
link/ether e6:82:31:99:34:57 brd ff:ff:ff:ff:ff:ff
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go to:
root@VIRTUAL:~# nano /etc/network/interfaces
auto lo
iface lo inet loopback
iface enp5s0 inet manual
auto vmbr0
iface vmbr0 inet static
address 192.168.10.10
netmask 255.255.255.0
gateway 192.168.10.1
bridge_ports enp6s0
bridge_stp off
bridge_fd 0