I am having a hard time accepting that it is okay to only allow passwords with letters and "_" underline. It is 2019 not 1995. We are all under constant threat of some type of attack and not having a secure password is poor practice at best.

Do all devices requiring a password made by TP-Link have this major flaw? I am replacing my current router, but will not chose another TP-Link if designed with this password issue.

Thanks