If your terminal experiences issues like slow transaction times and poor connection, you can follow the steps below to refresh the terminal connection.
Press Func + 6 and select GPRS
Press Func + 102 on your terminal for terminal refresh
For integrated Ingenico Move5000, check out the article here.
Tip: If you have a poor reception indoor, take the terminal to open air or outside, press Func on the terminal, insert 102 and press Enter