R6220 bug

A security vulnerability exists in the latest 1.1.0.114 firmware.

Bug1.

When I set the first character of the wireless password to "!XXXX", the router does not recognize the character and cannot save it.

Bug2.

When the administrator password has "! and space" characters, the copy-pasted password cannot log in, and you must manually enter the password to log in.

Suggest the router to add support for DNS dot doh, protocol.

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