wired ethernet status says connected, but I can't ping

Neither the 380 or 390 is (officially) supported by Dell for Windows 10.  Thus it may require installing a Windows 10 fully compatible NIC card in these. 

If it is compatible, Windows 10 would have installed the needed driver.

The 380 and 390 work fine with 10. Not supported does not mean not working.  When 10 drivers are not available you must use VISTA/7 WDDM drivers.

• OptiPlex 380
• OptiPlex 390

390 NIC

Description	Supported OS	Download
Realtek RTL81XX PCI-E Network Connection Driver This package provides the driver for Realtek RTL81XX PCI-E Network Connection and is supported on OptiPlex 390/3010 models that are running the following Windows Operating Systems: XP, VISTA and Windows 7.More details	Windows XP Windows Vista 32-bit Windows Vista 64-bit Windows 7 32-bit Windows 7 64-bit

380 NIC

Description	Supported OS	Download
Broadcom 57XX Gigabit Controller Driver This package provides the Broadcom 57XX Gigabit Controller Driver and is supported on OptiPlex 580/XE, Latitude E5520/2120/E5420 and Precision T5500/T7500 that are running the following Windows Operating Systems: MS-DOS, XP, Vista (64-bit) and Windows 7 (64-bit).More details	Windows XP x64 Windows 7 64-bit Windows Vista 64-bit MS-DOS
Broadcom 57XX Gigabit Controller Driver This package provides the Broadcom 57XX Gigabit Controller Driver and is supported on OptiPlex, Precision and Latitude that are running the following Operating Systems: MS-DOS, XP, Vista and Windows 7.More details	Windows 7 32-bit Windows Vista 32-bit Windows XP MS-DOS

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@effsivaram wrote:

We are having different models in optiplex.But in some models like optiplex 390 and 380 with windows 10 are getting one issue with ehternet could please share solution 

Problem "wired ethernet status says connected, but I can't ping any other device/computer"

 

 

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Uninstall those drivers and delete from Device Manager. Let Windows PnP device and load it's own latest (working) driver.