lost ssh after upgrade

[heliop100]

Hi,
I upgraded from 9.2 to 9.10 and now, when I try to ssh (putty on Windows) I get:

sshd: fatal: Unable to negotiate with 192.168.0.x port xxxx: no matching key exchange method found.
Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth}

How may I connect again?

Thanks.

 

[heliop100]

Sorry, very old putty version.
Are connecting now.