Are you actually getting a message that the password wasn't accepted, or does the login just fail?
What follows has not been reported with Frontier as far as I know, but it has with other internet providers, so maybe they're starting to do it too.
Your problem may have been caused by an update to your router which affects some Roku models. The update changes the router's 2.4 GHz wifi connection parameters from b/g/n to g/n. This has been reported with equipment from Comcast/Xfinity and Cox, and more recently ATT, but there may be others.
Affected users report the Roku identifies the local network as available and rates the connection quality, but will not then connect. The fix is to switch the router configuration protocols from the g/n wifi set by the update back to b/g/n.
If you don't have access to your router's configuration controls you may have to have your internet provider do it for you.
Roku Community Streaming Expert I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well. If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
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