windows7 shared printer, the client connection is normal, restart the computer and can not print

After recently using a computer with windows7 system directly connected printer and an HP m1536 share, windows7 client computer to print properly connected, then restart unable to print, the system also has the credentials.
After the following test client printer is connected properly
add 1. In Control Panel ------ ------ Credential Manager to delete the printer server credentials manually re windows credentials
2. Start ------ \ (printer server ip) Add the shared printer in this