The publisher of this remote connection can't be identified. Do you want to connect anyway?

Add to user logon script this

for %%a in (server-2 server-2 another-server-3) do ( 
reg add "HKCU\Software\Microsoft\Terminal Server Client\Servers\%%a" ^
/v CertHash /t reg_binary /d 0000000000000000000000000000000000000000 /f
reg add "HKCU\Software\Microsoft\Terminal Server Client\LocalDevices" ^
/v %%a /t reg_dword /d 68 /f
)

list all you servers separated with space in (server-2 server-2 another-server-3) to satisfy your own needs.