I am getting "You currently already have soildworks standard checked out, you must check it in before attempting to borrow it" error. Can anyone help me to solve this issue?
This sounds like a message I would expect with a network license. The network manager is mainly concerned with verifying that only the purchased number of licenses are available to use. I would suggest checking with your VAR to obtain "home user licenses". These are available for free (up to the number of paid network licenses) although they have some rules/regulations which are expected to be followed.
You can get this message if SOLIDWORKS is open while you are trying to do the borrow action.
David Durston is correct. By starting SWX you automatically and temporarily check out a seat. Best practice is to not have SWX open and then check out a license. From there you can log into SWX whether you are connected to the network and the SNLManager or not.
I tried after closing SW, but getting same error
Retrieving data ...