Schedule job doesnt work properly

[dsisbank]

I want to execute bat files on other computer in same network

I wrote two bat file.

First one is below

net use z: \\10.11.xxx.yy\EVENT /user:domain\username "xxxxxxxxxx"

I mapped then

second bat file

net use Y: \\10.11.xxx.yy\DOSYA_OLUSTUR /user:domain\username "xxxxxxxxxx"

Y:\EVENT.bat



When i run the job manuelly, there is no problem. It works but when i schedule the job, errorr hapens

"Logon failure: unknown user name or bad password."



Both jobs were executed by Administrator user in DS server.



How can i solve this problem