My e-way bill is not getting generated for inter-state consignments. What could be the reason and solution for this?

If E-way bill for interstate could not be generated from BUSY then need to check the following steps:
 Step 1: Check the GSP credential is validate successfully and for checking this you need to go to Administration Menu
 Step 2: Click on configuration feature.
 Step 3: Click on Feature and Option.
 Step 4: Click on GST/VAT feature then check e-way bill option is enabled as Y then go to GSP configuration option and validate it 
 Step 5: If any error occured while validate GSP credential then regenrate GSP credential from E-way bill portal
 Step 6: Go to Transaction Menu
 Step 7: Click on sale voucher then click on list option, you will get the list of sale voucher
 Step 8: Open the voucher and make sure In Sale TYPE select Central or IGST tax type
 Step 9: When generating an invoice in the Transport Detail window, Make sure Transporter or Vehicle no. is mentioned and enable E-way bill Required option as Y 
 Step 10: Then proceed for generate the E-way bill
 Step 11: Check Your internet connection is working properly
 Step 12: Check your Antivirus and window firewall is disabled as it might be block your BUSY
 Step 13: Exclude BUSYwin.exe from anitivirus