it might be the modem that's faulty, had the same problem even though mine was not down every five mins, it was frequently going down at irregular intervals, replaced the modem with a spare one and it has been stable since.
it might be the modem that's faulty, had the same problem even though mine was not down every five mins, it was frequently going down at irregular intervals, replaced the modem with a spare one and it has been stable since.