Download speed very slow

Hello again all,

Would someone be able to point me in the right direction - my Internet download speed is extremely slow on my Fedora 31 machine, I am getting a maximum of 5mbps on and when I should be getting 250mbps. I am plugged directly into my router with an Ethernet cable.

If I plug the Ethernet cable from my Fedora 31 machine into a Windows 10 machine the speeds are fine 250+mbps down and 40mbps up.

Where can i start looking to troubleshoot this please? Maybe it is the driver the NIC is using or something, I have a Realtek NIC card.

Settings for enp0s31f6:
	Supported ports: [ TP ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	Supported pause frame use: No
	Supports auto-negotiation: Yes
	Supported FEC modes: Not reported
	Advertised link modes:  Not reported
	Advertised pause frame use: No
	Advertised auto-negotiation: No
	Advertised FEC modes: Not reported
	Speed: 100Mb/s
	Duplex: Full
	Port: Twisted Pair
	Transceiver: internal
	Auto-negotiation: off
	MDI-X: on (auto)
	Supports Wake-on: pumbg
	Wake-on: g
	Current message level: 0x00000007 (7)
			       drv probe link
	Link detected: yes

driver: e1000e
version: 3.2.6-k
firmware-version: 0.8-4
bus-info: 0000:00:1f.6
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no

Thanks very much for any help you can provide.

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Solved this, was due to speed/duplex on the port. I used the ethtool to set it to auto negotiate.

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