Trouble with device identification

I’ve been logging into my bank account fine for a while now, but then they updated to U-Banking. What’s problematic is Avast Safezone has recently updated to Avast Secure Browser. So I’m not definite where the trouble is sourcing from. What’s happening is when I login it’s forcing me to receive a text message on the phone to verify my identity. I try to click the “Register my private device” so i don’t have to identify myself when I login again, but everytime I login it fails to remember my device. Does anybody know if the probelm is occuring with Avast Secure Browser or maybe U-banking? I think it’s the Avast Secure Browser because I’ve used U-Banking a couple times and never had to verify my identity on the phone more than once.

Thank you.