network speed maxes out at 100mbps while connected with 1gbps

Not sure where to ask, but starting here
This is my setup

1. Main router (tp-link archer c2 v1) which is capable of 1gbps wired.
2. Secondary router connected to main as switch (dhcp off) same model, connected to main via cat 5e cable over 15 meters.
3. PC connected to secondary router with cat 5e over 1 meter, PC has gigabit Ethernet.
4. TP-Link TL-SG1024 Switch connected to main router via cat 7 cable over 30 meters.
5. htpc connected to switch via cat 5e over 1 meter, htpc has gigabit Ethernet.

switch show on both ports a 1000 green light. htpc show 1000mbs pc show 1gbps

but when testing I get 100

htpc ethtool

root@media-box:~# ethtool enp2s0
Settings for enp2s0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supported pause frame use: No
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: Yes
        Link partner advertised link modes:  10baseT/Half 10baseT/Full
                                             100baseT/Half 100baseT/Full
                                             1000baseT/Full
        Link partner advertised pause frame use: Symmetric Receive-only
        Link partner advertised auto-negotiation: Yes
        Speed: 1000Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: pumbg
        Wake-on: g
        Current message level: 0x00000033 (51)
                               drv probe ifdown ifup
        Link detected: yes

pc

C:\Users\any>wmic NIC where "NetEnabled='true'" get "Name","Speed"
Name                                   Speed
Intel(R) Ethernet Connection I217-V    1000000000

iperf results

root@media-box:~# iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[  4] local 192.168.10.160 port 5001 connected with 192.168.10.14 port 61431
[  5] local 192.168.10.160 port 5001 connected with 192.168.10.14 port 61430
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-60.0 sec   339 MBytes  47.4 Mbits/sec
[  5]  0.0-60.0 sec   339 MBytes  47.4 Mbits/sec
[SUM]  0.0-60.0 sec   678 MBytes  94.8 Mbits/sec