Yes, the log contains the client:
05/05 14:23:01 [2324:26384] 10.212.80.85<AgentInfo DomainID="4F7D0xxx0B1EA22592D572C" AgentType="105" UserDomain="xxx.COM" LoginUser="xxx" ComputerDomain="xxx.com" ComputerName="xxx" PreferredGroup="My%20Company%5cGROUPNAME" PreferredMode="1" HardwareKey="C0C1408E4693FECBExxx1C21710" SiteDomainName=""/>
and the GROUPNAME is correct. This is also in sylink.xml. But on some reason, I see from client troubleshooting, that group is different.