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stack ports down on a 2 sw3750 stack

hi all ,

i have some 3750 stack (2 switchs) same ios in each ,

stacked port 1 to 2 and 2 to 1 (an X) ios 12.2.25 SEE1 crypto , and with sh switch stack-port i see a link down (port 1 sw1 and port2 sw2 ie)

stackwise version is 1.14 on both, is there a bug with this version or did i missed smthing ? is there some bads stacking cables ?

any idea or link would be useful


Re: stack ports down on a 2 sw3750 stack

Can you check the stackwise connection for bent pins? this is usually the cause for a damaged cable.

you can try replacing it with a new stack cable and check whether the error disappears or not



Re: stack ports down on a 2 sw3750 stack

Make sure the cables are tightened all the way down , they can look like they are tight but are not . tighted to finger tight or use a screw driver but do not over tighten just till snug .This is not my favorite platform . You try to upgrade them them and they don't upgrade correctly even when you follow cisco instructions to the T , spent an hour the other nite upgrading a stack because i kept getting version mismatch and it wouldn't boot correctly even with the boot system switch all boot parameter.