I've been using my ISP cable modem in Bridge Mode for the past year without any issues. However, for some reason, today I lost all internet connection on My Deco router/devices. I have 3 of them and the only way I was able to restore internet connectivity was to disable my ISP's cable bridge mode. Anyone have any idea why this would be the case?

I tried resetting both the ISP modem as well as the Deco devices, but same result. I have no idea why all of a suddent I cannot use Bridge Mode. When I login to my ISP's cable modem directly, even in Bridge Mode it's showing that it's connected to the internet and passes a connectivity test. So there's something wonky going on between how it now connects to my Deco devices. Any idaes/suggestions?