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

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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