Network via wired connection become slow but wifi dongle is working fine

Support Network
1

I don’t know what happen. This just happen yesterday. I always use wired connection and it’s fine then suddenly it becomes slow. other devices like my phones wifi is working fine too.

please help. thank you.

2

Can you post ip a on console ?
The network cable could be defective.
Can you check the indicator LED at the network adapter ?

3

here’s the result

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: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 10:bf:48:7a:77:4b brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.2/24 brd 192.168.1.255 scope global noprefixroute enp4s0
       valid_lft forever preferred_lft forever
    inet6 2001:4451:410e:c400:b13b:726d:fc83:d25b/64 scope global dynamic noprefixroute 
       valid_lft 258954sec preferred_lft 172554sec
    inet6 fe80::cab2:9828:2144:66e0/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: wlp0s26u1u3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 54:e6:fc:8e:62:91 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.5/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp0s26u1u3
       valid_lft 82974sec preferred_lft 82974sec
    inet6 2001:4451:410e:c400:a7bf:9a7d:94bd:c1b6/64 scope global dynamic noprefixroute 
       valid_lft 258954sec preferred_lft 172554sec
    inet6 fe80::e0ec:4751:e34a:9812/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

indicator LED are all green.

4

Dou you have a 100MBit or 1GBit connection ?

5

I think this is just 100mbit. I just avail the most affordable one.

6

you have both wired and wireless active, and both with the same IP subnet? Can you post “ip route”?

And how exactly do you measure the speed of your links, how do you notice that it is slow?

HP

7

Hi.

Thanks for offering help. I just reinstall my system again and everything is fine now. It’s just a hassle to reconfigure things again.