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I get the above error when I do the Windows Network Diagnostics on Windows 10.

The issue I am very sure is because when I do an ipconfig the subnet mask is 255.255.0.0. instead of 255.255.255.0 and the default gateway is blank

An ipconfig /release shows “An error occured while releasing interface Ethernet : An address has not yet been associated with the network endpoint.

An ipconfig/renew shows “An error occured while renewing interface Ethernet : unable to contact your DHCP server. Request has timed out.”

I have tried powercycling my computer and the router.

I have tried updating the driver for “Realtek PCIe GBE Family Controller” using the latest driver found here: “http://www.realtek.com/downloads/downloadsView.aspx?Langid=1&PNid=13&PFid=5&Level=5&Conn=4&DownTypeID=3&GetDown=false” ( I used a flashdrive and downloaded it on my laptop (since the wifi works fine))

Any ideas?