Login script net time not working

Our network is mostly Win95 machines. Our NT login script we have the net time as follows.
net time \\servername /set /yes. It works fine on the Win95 machines but the Win98 machines will not synch up. They always use the time in the Bios. Cannot find anything on the web about it. When you run the script manually on the Win98 machines it synchs up fine it just doesnt want to run at login. Been around in circles on this one. Any advice or documents much appreciated. It’s not a big deal but users keep bugging me about it. Which makes it a pain in the a#@!