Yes, bought a cheap router, added it to the DMZ. Leave the firewall off the Verizon router. I bought this one specfically:https://www.amazon.com/dp/B08LHJZ2NJ?psc=1&ref=ppx_yo2ov_dt_b_product_details you can buy whichever you want as long as the options let you set the MTU and customize the firewall. I set the MTU on this router to 1400 and blocked all IPSEC ports. When connecting to this router, everything works fine. The firmware on Verizons modem is trash.