Hi all , I compiled the list Peter asked for (see below).
Further some new insights/tests:
The main issue seems indeed to be an issue of the cable.
Preamble:
I have some Cat6 cables connecting Communication Center, where the main router sits, to different rooms in my house.
E.g. one cable goes to Room 1 and another to Room 2.
The Devolo Wifi is in Room 1 and connects to the main router with 1000 MBit by the cable.
The EA7500v1 is in Room 2 and connects to the main router by cable also.
Problem: Can I bring the EA6500v1 to 1000 MBit?
What I did:
From the above I know that the connection to Room 1 is capable of 1000 Mbit.
I set the speed limit and disabled energy saving for LAN3 and LAN4 (in an init script executed on boot with a delay of 15 sec).
I left WAN, LAN1 and LAN2 as they are.
I replaced the Devolo by the EA7500v1 and plugged the cable sequentially into WAN,LAN0/1/2/3 and booted the EA7500v1 after plugging.
Observation on WAN,LAN0/1/2/3:
WAN:
1000 MBit in Bride VLAN Filtering, and also on the main Router, all stations behind the EA7500v1 visible and pingable.
LAN0/1:
On the main router, I see the cable connected as 100 Mbits
LAN1/2:
On the main router, I see the cable connected as 1000 MBits
In the "Device List" of the main router I see the EA7500v1 with its IP and MAC, but a different hostname - the hostname of the other EA7500v1 (!!!)
There is a second entry with the same IP and a MAC that matches to the first 3 byte and differs in the last 3 bytes, this is from the other EA7500v1 - how can it get the same IP?.
Further I see some stations "behind" the EA7500v1.
The device list has approx 8 entries (which is ok, just 8 stations there). but it changes every 3-5 seconds: some of the stations behind the EA7500V1 including the EA7600v1 appear and disapear again.
The web admin page of the router is not accessible, no ssh logion, no ping, same for the devices "behind" the EA7500v1
LAN3/4 same as for LAN1/2, but on the main router, I see the cable connected as 100 MBits
So the new question is: why cann't I connect the cable to the lan ports for any speed - all is bridged....
And why does the other EA7500v2 have the same IP?
BTW:The Router does not connect by 1000 Mbits in Room 2 although Cat6 cable. It is probably a matter of the plugs, I will crimp new plugs with proper ground connection and shielding (the cable is shielded) and then check again.
This is the config part:
ubus call system board
{
"kernel": "6.12.87",
"hostname": "XXXXXXEA7500XXXXXX",
"system": "ARMv7 Processor rev 0 (v7l)",
"model": "Linksys EA7500 V1 WiFi Router",
"board_name": "linksys,ea7500-v1",
"rootfs_type": "squashfs",
"release": {
"distribution": "OpenWrt",
"version": "25.12.4",
"firmware_url": "https://downloads.openwrt.org/",
"revision": "r32933-4ccb782af7",
"target": "ipq806x/generic",
"description": "OpenWrt 25.12.4 r32933-4ccb782af7",
"builddate": "1778712129"
}
}
cat /etc/config/network
config interface 'loopback'
option device 'lo'
option proto 'static'
list ipaddr '127.0.0.1/8'
config globals 'globals'
option dhcp_default_duid '00045275bc4c3f0e4fa3b6e927b39fb342bc'
option ula_prefix 'fdec:d91d:89c4::/48'
option packet_steering '1'
config device
option name 'br-lan'
option type 'bridge'
option ipv6 '0'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
list ports 'lan4'
list ports 'wan'
option mtu '1500'
option priority '4096'
option stp '1'
config interface 'lan'
option device 'br-lan'
option proto 'dhcp'
option multipath 'off'
config device
option name 'eth0'
option ipv6 '0'
config device
option name 'eth1'
option ipv6 '0'
config device
option name 'wan'
option ipv6 '0'
cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option path 'soc/1b500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
option band '2g'
option channel '1'
option cell_density '0'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'xxxxxx_24'
option encryption 'psk2'
option wds '1'
option key 'xxxxxxxxxxxxx'
config wifi-device 'radio1'
option type 'mac80211'
option path 'soc/1b700000.pcie/pci0001:00/0001:00:00.0/0001:01:00.0'
option band '5g'
option channel '36'
option htmode 'VHT80'
option cell_density '0'
config wifi-iface 'default_radio1'
option device 'radio1'
option network 'lan'
option mode 'ap'
option ssid 'xxxxxxxxxx_51'
option encryption 'psk2'
option wds '1'
option key 'xxxxxxxxxxxxxxxx'
mind that dhcp ist switched off:
cat /etc/config/dhcp
config dnsmasq
option domainneeded '1'
option boguspriv '1'
option filterwin2k '0'
option localise_queries '1'
option rebind_protection '1'
option rebind_localhost '1'
option local '/lan/'
option domain 'lan'
option expandhosts '1'
option nonegcache '0'
option cachesize '1000'
option authoritative '1'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
option nonwildcard '1'
option localservice '1'
option ednspacket_max '1232'
option filter_aaaa '0'
option filter_a '0'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv4 'server'
option ignore '1'
config odhcpd 'odhcpd'
option maindhcp '0'
option leasefile '/tmp/odhcpd.leases'
option leasetrigger '/usr/sbin/odhcpd-update'
option loglevel '4'
option piodir '/tmp/odhcpd-piodir'
option hostsdir '/tmp/hosts'
all interfaces are in "lan" so the firewall has no effect
cat /etc/config/firewall
config defaults
option syn_flood '1'
option input 'REJECT'
option output 'ACCEPT'
option forward 'REJECT'
config zone
option name 'lan'
option input 'ACCEPT'
option output 'ACCEPT'
option forward 'ACCEPT'
list network 'lan'
config zone
option name 'wan'
option input 'REJECT'
option output 'ACCEPT'
option forward 'DROP'
option masq '1'
option mtu_fix '1'
config forwarding
option src 'lan'
option dest 'wan'
config rule
option name 'Allow-DHCP-Renew'
option src 'wan'
option proto 'udp'
option dest_port '68'
option target 'ACCEPT'
option family 'ipv4'
config rule
option name 'Allow-Ping'
option src 'wan'
option proto 'icmp'
option icmp_type 'echo-request'
option family 'ipv4'
option target 'ACCEPT'
config rule
option name 'Allow-IGMP'
option src 'wan'
option proto 'igmp'
option family 'ipv4'
option target 'ACCEPT'
config rule
option name 'Allow-DHCPv6'
option src 'wan'
option proto 'udp'
option dest_port '546'
option family 'ipv6'
option target 'ACCEPT'
config rule
option name 'Allow-MLD'
option src 'wan'
option proto 'icmp'
option src_ip 'fe80::/10'
list icmp_type '130/0'
list icmp_type '131/0'
list icmp_type '132/0'
list icmp_type '143/0'
option family 'ipv6'
option target 'ACCEPT'
config rule
option name 'Allow-ICMPv6-Input'
option src 'wan'
option proto 'icmp'
list icmp_type 'echo-request'
list icmp_type 'echo-reply'
list icmp_type 'destination-unreachable'
list icmp_type 'packet-too-big'
list icmp_type 'time-exceeded'
list icmp_type 'bad-header'
list icmp_type 'unknown-header-type'
list icmp_type 'router-solicitation'
list icmp_type 'neighbour-solicitation'
list icmp_type 'router-advertisement'
list icmp_type 'neighbour-advertisement'
option limit '1000/sec'
option family 'ipv6'
option target 'ACCEPT'
config rule
option name 'Allow-ICMPv6-Forward'
option src 'wan'
option dest '*'
option proto 'icmp'
list icmp_type 'echo-request'
list icmp_type 'echo-reply'
list icmp_type 'destination-unreachable'
list icmp_type 'packet-too-big'
list icmp_type 'time-exceeded'
list icmp_type 'bad-header'
list icmp_type 'unknown-header-type'
option limit '1000/sec'
option family 'ipv6'
option target 'ACCEPT'
config rule
option name 'Allow-IPSec-ESP'
option src 'wan'
option dest 'lan'
option proto 'esp'
option target 'ACCEPT'
config rule
option name 'Allow-ISAKMP'
option src 'wan'
option dest 'lan'
option dest_port '500'
option proto 'udp'
option target 'ACCEPT'
