Internal network upload speed slow

I only have a problem with the internal network. The internal network is operated by this card:

01:00.0 Ethernet controller: QLogic Corp. cLOM8214 1/10GbE Controller (rev 54)
01:00.1 Ethernet controller: QLogic Corp. cLOM8214 1/10GbE Controller (rev 54)

[root@wrouter ~]# ethtool green0
Settings for green0:
        Supported ports: [ TP FIBRE ]
        Supported link modes:   10000baseT/Full
        Supported pause frame use: No
        Supports auto-negotiation: No
        Advertised link modes:  10000baseT/Full
        Advertised pause frame use: No
        Advertised auto-negotiation: No
        Speed: 10000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: off
        Supports Wake-on: g
        Wake-on: g
        Current message level: 0x00000000 (0)

        Link detected: yes

[root@wrouter ~]# ifconfig green0
green0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet  netmask  broadcast
        ether a0:48:1c:e0:5e:b0  txqueuelen 1000  (Ethernet)
        RX packets 3108385  bytes 3180870275 (2.9 GiB)
        RX errors 0  dropped 1  overruns 0  frame 0
        TX packets 4303839  bytes 4721064660 (4.3 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 35

It connects to a TP-Link TL-SG3428X switch with an optical cable and client computers with a gigabit network cable to the switch. The clients communicate and copy with each other at a stable gigabit speed (95-115 MB / s).
When I want to pull something off the server, it comes at a stable 95-115MB / s, but when I want to upload something to it, it’s good to go at 50MB / s. Cables are definitely good, switch also, I also tested with a Mikrotik css326-24g-2s + rm, beyond that I am, optical cable and SFP modules are also tested with others, they are also good.
I’m using a Samba share. What setting options might I have missed and cause this?

The system is on an SSD and the share is a 2x6tb winchester. The 2 winchester is in RAID0. The transfer between SSD and RAID0 is stable at 450-500 MB / s. (I’ve already done a share on the SSD for testing, but it produced the same speeds for network copying …)

I connected a machine to the server on the orange0 device ( Then I did a test on one of the green0 machines (

With full gigabit bandwidth, the two machines copied to each other. Stable 105-115MB / s.
There should be no hardware problem. Samba or ipfire configuration