*When processing a transaction, you see an error message that begins with “C” and followed by a number (C1, C2, C3, C4, C5, C6, C7, C8, C9). *

This means you may have an internet or phone line connection issue. This is most commonly caused by multiple devices using the same phone line. This can also be caused by a faulty phone/ethernet/internet connection (connection type depends on equipment type and location).

If connected via internet – you may have a Firewall blocking your connection to the device.


1. Verify connection to phone and/or internet (connection type will depend on your equipment type & location).

2. Check the function of telephone line by verifying dial tone from that port. Check your internet connection by using that internet connection with other devices. If your phone and/or internet are working properly, move on to the next step.

If phone/internet are NOT working, contact your internet/phone provider.

IF CONNECTING VIA PHONE The phone line MUST be analog, NOT fiber optic. This means if you are using a fiber optic phone service such as AT&T Uverse or XFinity from Comcast for telephone service, you will need to contact that provider so they can send you a converter. Once you receive this converter from your telephone service provider, you can begin operation as usual with your device.

Check all of your cords to verify they are all plugged in correctly. This may include phone jack, phone/ethernet cord.

3.” Restart your terminal.”:https://cs.goebt.com/faqs/1/en/topic/restarting-your-ebt-terminal-vx510-vx570

If you’re still having trouble, please submit a support request.

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