I have this issue at present started after Windows update 14 March 2018. Windows 7 Pro 32bit computers not brand name different motherboards related network cards. Doesn't matter what software is installed or uninstalled device drivers updated or remove and allowed to be redetected. Computer ALWAYS reboots after connecting to network. Remove network cable or disable wireless and start in normal mode no issues. Reconnect network adaptors and computer will reboot after establishing network connection. The fix is to reinstall Windows over top of itself then do all the downloads again. Spent a total of 18 hours trying all sorts of things without sucess before resorting to this fix