We’re getting authorization page when opening wp-admin panel link, but after filling in the credentials it’s redirecting to the page with the error “This webpage is not available”.
Please check if there are any restrictions on a server at your host or check your .htaccess file.
My host deal send me this. i just transtlate with google translater!
we inform you that you have activated the restrictions for connections from some foreign countries with regard to access backend site in joomla! hosted by us due to numerous attacks bruteforce massive at our domain, so you can sometimes encounter slowdowns in using the backend of the site.
At the moment we have taken steps to enable https mode on its domain with which should no longer experience the problem, in this case can then access the backend of your site exclusively by the protocol (only for the administrator) and not more via http protocol :
obviously not having the certificate exclusively dedicated to this domain the first time the browser will ask you to insert the certificate as a permanent exception, proceed well with the video instructions without problems.
I remain at your disposal for further clarification