S205 Internet disconnection on wired network

[ozorens]

updated drivers but not tried firmware update of wired nic. ill try this.

[yigit]

using anti-virus by the way? ( which one, if yes )

[ozorens]

at default win version, avira. (after format) at last win no any antivirus software. btw i couldnt find firmware for nic at lenovo support page. only driver available.

[yigit]

check modem's manufacturers' website for firmware update, not lenovo

[WildChild344]

Sorry if my reply come so late.

As I said in my first post, I had exactly the same problem as ozorens.

The problem wasn't from the router or cable (or my OS as I was thinking). I only fixed it by installing another driver for the network adapter. I installed driver 7.46.531.2011 and haven't got a disconnection since that. So I think the problem was from the network adapter driver. I had the problem with both the driver from the CD that came with my laptop, and the driver from the site but no problem with this new driver.