Diagnosing Ethernet network problems on Windows 2012 R2?
Posted on 2017-03-08
I've got a problem here. People keep getting disconnected from one of our fileserver with a Windows 2012R2 OS on it. It is connected to a cisco switch (not managed by us sadly). Our firewall is also connected to this switch.
All are on the same network (192.168.15.0/24).
If I ping from the firewall to any PC's on the network, there are no timeouts.
If I ping from the fileserver to any PC on the network or to the firewall, after around 200 pings, there are timeouts that last for 5 seconds to both the PC's and the firewall. At first I thought it may be switch related, but it can't be when the firewall doesn't timeout to other PC's as it goes through the same switch.
So if I wanted to diagnose whether we have fileserver hardware problems or TCP/IP issues, how can I diagnose it?
By the way, we have tried in the past to change the port we connected to at the back of the fileserver and still encountered a similar problem.
Perhaps I need to uninstall/reinstall Ethernet driver?
Ah, also guys I am getting timeouts to the ILO!! And that isn't related to the OS is it?
Thanks for helping