AIO remote does not find my printer

I changed Internet providers a few months ago. I have not been able to print from my iPhone or iPad since then. AIO remote does not find my printer at all.

Both AirPrint and the HP AIO Remote app relies on Multicasting, a such have to be supported and enabled by your router.
Some routers support a such by default, some require settings changes and some do not support Multicasting which required for a such.
Please clarify your router brand and model to better understand any possible steps to try.
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