I’ll start with the back story and will keep it short as possible. I have 5 self serve carwash bays with Nayax card readers. The first 6 months they operated beautifully and they grew to 50% of my total business. These were setup on Verizon SIM cards. About a month ago they all stopped working abruptly. I went through the gauntlet with tech support and finally they determined that Verizon had changed their service in my area from 4g to 5g and the signals were no longer compatible. They sent me T-Mobile SIM cards and explained that they supported a stronger 4g network. They worked well for one week and now they are 100% not working. Tech support now tells me that my signal is too weak and I need hi-gain antennas to strengthen the signal. I bought the new antennas and am waiting for the delivery. I hope that someone has been down the low signal road and can help me correct this. It’s great when 50% of your business is on cards, it sux when you watch 50% of your business drive away when they don’t work.