No internet behind switch!

[TheSinding]

Okay so here´s the deal ..

Network diagram

Internet ---> Modem/router ---> Switch (Dlink DSG 1005D)--> Main PC, IPTV, media center

The problem here is.
My media center wont work with the switch, but everything else will.
My main PC has a full internet speed aswell as the others, expect for the media center. I cant browse the web with the media center, even tho it says it has internet connecting. It is getting assigned a IPv4 address from the router (192.168.1.xxx) like all the other pc´s in the router + I can see it in the routers webGUI.
I´ve tried googleling this one hard, but cant find an answer.
The media center is running win8, the network nic is a marvell yukon 88E8057 nic.
If I plug it straight into the router, it works perfectly. I dont get it?

 

[NeverBackDown]

Update drivers?

 

[TheSinding]

I tried that, many times, tried different versions driver too..

 

[NeverBackDown]

Update windows or router firmware?

 

[TheSinding]

It works when I plug it directly into the router, and all other network connect devices behind the switch (expect for the media center) works..
I don´t think its the routers firmware, which I btw cant touch because its the an ISP shitty cheap solution with modem and router in one, and alot of it is close off so I cant touch it, expect for the normal firewall and that kind of things
Sorry if I sound cranky

 

[Snortan]

Have you tried pinging the router from the media pc when behind the switch?

 

[TheSinding]

Have you tried pinging the router from the media pc when behind the switch?

Yeah I have.. It gets through sometimes, but it losses about 25% of the packages in average.

 

[SPS]

Have you tried a different port on the switch? It might be a faulty connection.

 

[TheSinding]

Ive done that too.. thats the weird thing, no difference..

 

[Chris230291]

Have you tried switching the cables at all? A cheap cable will cause you problems, particularly in long runs.

See if you can flash that shit with dd-wrt? Who is your provider? VM "super hub" routers can be set to just "modem mode", then connected to a decent router.

 

[TheSinding]

Im gonna check if I can flash it.
I tried different cable.
My provider is TDC (Denmark)
Could it be, because of the cheap nic on the motherboard?

 

[Snortan]

The nic should be fine since you said that it works when it's plugged in the router directly.
It could be a duplex mismatch. Since the switch autonegotiates you should set your computer to autonegotiate too. To do that Right Click on Computer -> Manage -> Device Manager -> expand Network adapters and double click your NIC -> Advanced tab -> should be a Speed&Duplex option or something along those lines and set it to Auto Negotiation.

 

[TheSinding]

I´ve just checked..
It is set to auto negotiation..

 

[Snortan]

Check your other computers that work though the switch what duplex they are using.
Other things I would try:

• In command promp type ipconfig /release
• ipconfig /renew
• ipconfig /flushdns

Different DNS server, opendns or google public dns.
In command prompt if you do "ipconfig /all", what info do you receive for your NIC.
Give that pc a static Ip or reserve an IP just to see what would happen then.
If you have lots of entries in the hosts file, I would try to reset it to default. Here is a MS guide.
Try starting in safe mode, maybe you have a firewall rule or some program that interferes.
Last thing I would try would be to use a live linux distro to see if it would work then.