failure to reconnect to LAN on restart,Works on cold start.

[searlec]

Was using Fedora ,19 then 20 then 21. After updates I could not connect (LAN) to router.
after several failed troubleshooting efforts I switched to centos 7. Ran perfectly until first updates then same as before. After a thorough look at possible cable problem I switched ethernet cable to a known good.Couldn't get consistent failure, occasionally it worked. Switched to UBUNTU, Centos felt like I was monitoring a server, Ubuntu worked very well EXCEPT on restart which brings on the same "can't connect". Power off -Cold start ,perfect.
Build: Intel DH87RL , Intel 4570 , 8 GB Crucial Ballistix 1600 DDR3, Integrated sound and graphics.
Next step : Install NIC card Ordered PWLA8391GT Desktop adapter Pro /GT1000 /GT10
After that : Change mother board. Any suggestions? 1150 LGA socket
After that : pen, ink, envelopes and stamps.
Seriously, I am sorely in need of shared wisdom and truly grateful for any thoughts.

Am picking up hints of suspiciously similar problems with this board but no real solutions.

 

[skittle]

Have you considered the possibility that the network card ( hardware) is bad? It's certainly possible.

Otherwise you'll need to check your dmesg logs for possible hints as to the issue. Maybe its a driver bug with this chipset. Maybe your dhcp server? Hard to say...

 

[searlec]

I have indeed considered the integrated network , to the extent that I'm awaiting a plug in card. Dhcp works with several other machines quite well on the same router/server. At varying times it may be pclinuxos on an old IBM thinkpad or windows 8.1 on a haswell build. dmesg has not helped . Not a software man but nothing leaps out.Chipset suspect and drivers but not proven so far.
Thanks for your response , certainly helped clarify my thinking.

 

[searlec]

Problem appears resolved by a firmware update via Ubuntu on 12/08/2015. An NIC related firmware update 127.1.10 became 127.1.11. Thank you skittle for the nudge. At any rate the problem is gone.