T410 Networkcard Problems ?

[IT-Operations]

Hello Community,

We have the following Problem with our T410.

Sometimes we get no IP Adress from our DSl Router. At this time it is also not possible to connect over the 3G Modem or Wireless Lan . 

After 30 min the Laptop get an IP from the same DSL Router without Reboot from the Router. This Problem is not every Day , it work one week normal and then we get this Problem and we can´t solve this very quick.

I think maybe the Networkadapter is not working fine. We use the newest Drivers and the OS is unattend installed. It means that this OS is running normal on other Hardware.  My personal feeling is that the Laptop T410 have some problems with the network Connectivity.

Any Ideas ?

Thanks a lot