Check if;
- Tally is open or not.
- If more instances of tally are open make sure only one Tally is open.
Follow the steps given below for Tally Prime :
Step 1: Press F1 for Configuration.
Step 2: Select Settings.
Step 3: Select Connectivity > Enter.
Step 4: Select the Tally Prime Act as Both.
Step 5 : Enable ODBC as Yes and set Port number as 9000
Follow the steps given below for Tally Erp:
Step 1: Press F12 for Configuration.
Step 2: Select Advance Configuration .
Step 3: Select the Tally Acting as Both.
Step 4 : Enable ODBC as Yes and set Port number as 9000
Note* Kindly allow Suvit desktop application from your Firewall.