We are doing router refreshment project. We are replacing 1700 router with 1841 router. But the 1700 router having Ethernet port 1841 router having Fastethernrt port. We are facing some problem while replacing 1841 router. Fast Ethernet port having CRC error and collecting error ( half duplex and speed 10) this problem is not in 1700 router. Problem with only 1841 router
In 1700 router settings are half duplex and speed 10, I configured the same in 1842 router but I am getting CRC error. If I set full duplex means the line protocol is went down. So I am sure the duplex is half and then I tried speed 100, 10 & auto but the result is same. When I am connecting e0 int in 1700 router that time everything is fine settings is half duplex and speed is 10. I am facing this not only one router where ever I replacing 1842 router I am having same problem so I am suspecting some things problem in Fasethernet port.
CRC errors on a port could be an indication of a duplex mismatch, like collisions are. set both to auto on both ends and see what they autonegotiate. If the port doesn't come up try setting both ends to speed 10 but leave duplex auto.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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