Wrong Subnet Mask, Wrong Gateway, Duplicate IP Address and Wrong DNS

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Wrong Subnet Mask, Wrong Gateway, Duplicate IP Address and Wrong DNS This lesson continues to cover trouble shooting common wire and switch issues and discusses the following: Wrong subnet mask: subnet indicates net portion versus host, which can throw off addressing scheme Wrong Gateway: Device sends packets for other networks, typically a router issue Duplicate IP Address: windows may show error Wrong DNS: External DNS does not recognize internal DNS
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