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New Member

SF302-08P Won't Import SSL Certificate?

We have seven 300 series small business switches, all consistently configured. All running firmware with boot code.

2x SG300-28P V01

1x SF300-24P V01

1x SF300-48 V01

1x SF300-48P V01

1x SF302-08P V01

1x SF302-08P V02

I have successfully assigned certificates from our Microsoft certificate authority (2008 R2) to five of the units, but can not assign certificates to the two SF302-08Ps.

I use the following commands:


crypto certificate 1 generate key-generate 2048


crypto certificate 1 request cn XXX ou XXX or XXX loc XXX st CA cu US


crypto certificate 1 import





I receive the following error: SSL can't import certificate - conversion of input to certificate failed.

Again, those commands work on five out of seven switches. The only common factor is that they fail on the two small switches.  I have tried rebooting immediately before attempting to generate the key and import the certificate. I tried rebooting immediately before attempting to import the certificate on the existing key. I verify all CSRs and certificates with the utilities here: and I've turned with logging buffer up to level 7 (debugging), but no message is recorded.

Any thoughts on why these two switches won't import my Microsoft CA certificates?

Everyone's tags (4)

SF302-08P Won't Import SSL Certificate?

Sean, could you email me a sample certificate at ?

I'd like to try to reproduce in a lab to see how my switches behave.

Please mark answered for helpful posts

-Tom Please mark answered for helpful posts
New Member

SF302-08P Won't Import SSL Certificate?


I have sent you a replay of an effort to generate a CSR and import the certificate issued by our CA. Please let me know if you can reproduce.


New Member

This seems remarkably similar

This seems remarkably similar to my issue:

Did you ever discover what the solution was?