ETH rig not recognizing internet connection

[KevinCookeMMA]

Hello,

I just got 2 rigs from MiningCave and one is working perfectly and the the other was working for 24 hours and then all of a sudden it lost internet connection. The rig is running but I cannot access it remotely because it is not showing up as connected to the internet. Any idea on what is wrong with the internet connection with it?

The ethernet cord works, I can connect to the internet from my laptop with it.

http://imgur.com/dOA42ly
http://imgur.com/RyyCtQk
http://imgur.com/JEmLiYh
http://imgur.com/k2e7r9u
http://imgur.com/VvudwZc

[JaredKaragen]

check the system logs in computer management (assuming windows);  see if any errors are present......

If you reboot the rig does it work fine again?

If a display and HID devices hooked up can you control the machine or is it frozen?

is it just the miner app?  or can you visit websites from that machine?

is your router expiring your IP and not renewing the lease via DHCP?

have you completely disabled IPV6? (always smart anyways in my book, you can drop an entire network to its knees easily with a few simple repeated IPV6 commands)

if its freezing; could be many things;  gotta test everything one at a time, memory, mb, cpu, etc;  including checking the power supply for odd ripples in all the power busses....

[64dimensions]

Also check to see if the device driver is ok.

[PcChip]

apply standard network troubleshooting to it 
 
is it getting an address from DHCP? 

[KevinCookeMMA]

Hey, one of the GPU's was messing the whole rig up. Just trouble shot each riser and GPU to see which one was causing the problem.