HELP! Registration with the OLT failed. Check registration parameters. (Converge Router)

[milobest12]

Help po mga idol na IT experts. Nagpalit po kasi ako router ng converge from 2.4ghz lang na router to 2.4ghz to 5ghz na router same from converge din. Pagsalpak ko po ng router e ganito lumalabas "Registration with OLT failed. Check registration parameters." Any solution po kaya dito? TIA mga idol!!