This article applies to the V1-M, V1-X, P1-Nano, P1-M and P1-X DAW Controllers and D4, D4T and D5 displays.

ICON Controllers use the HUI Protocol to communicate with Pro Tools, (not EUCON). 

You should disable (untick) the EUCON option in the Pro Tools peripherals window to avoid any possible communication issues between your iCON DAW controller and Pro Tools.

With Pro Tools open;

• Go to the SETUP menu and select PERIPHERALS
• Then click on the ETHERNET CONTROLLERS tab 
• Untick the ENABLE EUCON box
• Click OK

Now your meter bridge should work fine.