SVE Guest Agent Install fail

Any luck?  I'm having the exact same issue.

I also have the same issue, tried on a couple of VM's a w2k12r2 and a w2k16 get the same issue on both.  I've had to reinstall our security VM so have to reinstall all of the agents on my guest VM's and can't get them working!

same here the functions value isn't there even after you install and wait for the installation to fail

I figured it out over here.  Maybe this will help someone. I had to do the following:

1. Log in to the appliance's console and enable SSH (this is really only for convenience)
2. I enabled SSH to start at boot (Again, just for convenience)
3. I reset the smb passwords for the sophos account and the sophospublic account.
4. Restart the appliance or restart SMB.  At this point SMB was working and I could install the .MSI
5. I went ahead and turned on guest access for the two shares.  I didn't want to sign in to them and I didn't figure they were protecting an important info.  The conf file to edit is at /etc/samba/smb.conf and I added the share definitions to the following:
   
   

   [public]
       comment = Public Share
       path = /public
       browsable = yes
       valid users = sophospublic sophos username nobody
       guest ok = yes
       guest only = yes
       guest account = nobody
       read only = yes
       directory mode = 0774
   
   [logs]
       comment = Log Share
       path = /logs
       browsable = yes
       valid users = sophos nobody
       guest ok = yes
       guest account = nobody
       guest only = yes
       read only = yes
       directory mode = 0774

If anyone has any input on why this is a horrible idea I would be open to hearing what you have to say.

sounds a right pain!

As well as the cipher change (see this KBA https://community.sophos.com/kb/en-us/126188) are you able to change Network security: LAN Manager authentication level to Send NTLMv2 response only?

If possible, please change this setting, then re-try the installation.

There is also a dedicated Sophos for Virtual Environment community section here: 

https://community.sophos.com/products/server-protection-integration/f/sophos-for-virtual-environments 

This fixed it for us with Server 2012 R2 and Exchange 2013. Thanks! As mentioned later here is the Sophos KB article about it. https://community.sophos.com/kb/en-us/126188

The difference in this article is it mentions 

 HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Cryptography\Configuration\SSL\00010000  We did not have that key, but we did have 00010002 as mentioned by Emineminem, so I updated that key, rebooted and then the installer worked.