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When you try to login, if you see the following message, try logging in from a different wiki page:
Forbidden
You don't have permission to access this resource.
This happens if a page title contains special characters and you try to log in on that page. (A period (.) or dash (-) seem to be okay in the page title.) This seems to be related to a known issue, CONFSERVER-11285, which says to avoid + % ? / \ & ; in page titles.
If you still can't log in, and you are sure you have an account, there may be a problem with your password.
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