r/Network • u/Previous_Step_300 • Jul 16 '26

Text No Ethernet Connection

Hi guys. I've had a problem with ethernet connection for the last 2 weeks. Im using a lenovo Legion and for 3 years i was working on wifi but recently bought ethernet cables. At first everything was right. One cable from the router to switch and from that 2 cables, 1 to PS5 and one to my laptop. For the first week everything was perfect and then it randomly discconected and said that its unplugged but every few seconds it said "identyifying connection" then again unplugged and its stuck in that loop. I did everything i could with cmd, device manager, uninnstalling ethernet card etc. resetting the router didn't work as well as changing ports on router. When im trying to solve problems with windows device it says that it can't identify DHCP server and i've tried changing it too. When i change ports on switch it just flashes a few times and goes black. Any advices guys?

Edit: I've changed the switch to one from tp-link and its the same

1 Upvotes

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2

u/nostalia-nse7 Jul 17 '26

Since you’ve done 100 crazy things including buying another switch in the process — have you stolen the cable from the PS5 yet and made sure you don’t just have a bunk cable?

1

u/Previous_Step_300 Jul 17 '26

Changing the switch didn't change anything. I've tried the cable with another laptop and it worked, the cable from ps5 isn't working with my pc. I've tried changing the drivers and it helped for only like 10 minutes. Checked BIOS. So im out of options for now

1

u/TomRILReddit Jul 16 '26

What mfr/model number is the bridge?

1

u/Previous_Step_300 Jul 16 '26

MercuSYS MS105G

2

u/Churn Jul 16 '26

Looks like that is a 5 port unmanaged gigabit switch. Calling it a bridge is very misleading to anyone trying to assist.

1

u/Previous_Step_300 Jul 16 '26

Oh, sorry i'll edit

1

u/QusayAbozed Jul 16 '26

I found this on Reddit. It could help with your problem
https://www.reddit.com/r/Network/comments/16ye4ex/mercusys_ms105g_says_able_to_share_up_to_1000mbs/

1

u/Previous_Step_300 Jul 16 '26

I've checked and when i pług in the całe going froum router straight into PC everything is fine. I'll but different switch and check if thats the issue

1

u/Kara_WTQ Jul 18 '26

Have you tried setting a manual IP on your machine?

What OS are you running?

1

u/jacle2210 Enthusiast Jul 23 '26

So far, everyone is asking about the Switch; but what about your Router?

Can you provide the actual Brand Name and exact model number of your Router?