SFTP Connection MAC error

[zvad]

Hi! Have been using build 1883 and earlier versions to successfully connect to an SFTP server.

First noticed inability to connect in build 1888, but also in 1891. There appears to be additional connection steps occurring in the newer builds (client/server MAC) that wasn't present previously.

The workaround seems to be to use putty mode.

Is this expected behavior with the newer builds?
Does enabling putty mode in any way negate the use or functionality of FIPS mode?

Thanks for your help!

[u]Build 1883[/u]
Resolving “sftp.server.nameâ€￾ …
sftp.server.name [22] connecting...
SSH-2.0-WS_FTP-SSH_8.0 FIPS
diffie-hellman-group1-sha1,diffie-hellman-group14-sha1
client -> aes256-ctr
server -> aes256-ctr
0a:3b:fc:54:32:8a:8c:29:0a:8d:d4:90:5c:45:4d:57
ssh-rsa
Sending password
PWD
Current directory is '/users/user'
Keep alive off...
Transferred 1,411 bytes in 0.008 seconds

[u]Build 1887 & 1891[/u]
Resolving “sftp.server.nameâ€￾ ...
sftp.server.name [22] connecting...
SSH-2.0-WS_FTP-SSH_8.0 FIPS
diffie-hellman-group1-sha1,diffie-hellman-group14-sha1
client cipher -> aes256-ctr
client->server mac : sha2-512
server cipher -> aes256-ctr
server->client mac : sha2-512
0a:3b:fc:54:32:8a:8c:29:0a:8d:d4:90:5c:45:4d:57
ssh-rsa
SFTP connection error

[ForumAdmin]

It does look like there might be an issue with this server type.

If the server is publicly accessible, could you email the hostname to feedback at coreftp dot com?

[ForumAdmin]

This issue will be fixed in builds 1895 and greater (sha2-384/512 only allowed with group exchange).

[zvad]

Thanks for the prompt response & attention - it's somewhat of a rarity these days!