Ruwiki user Ibidem can't login to his ruwiki account, he constantly gets an error message "Our servers are currently experiencing a technical problem..." (full text at https://ru.wikipedia.org/wiki/Википедия:Форум/Технический#Учетная_запись_Ibidem) for over a week, in different browsers and different computers. He is able to login to some other projects, such as Commons, but since he hasn’t created SUL due to a username collision, automatic login from Commons does not work either.
If you report this error to the Wikimedia System Administrators, please include the details below. Request: POST http://ru.wikipedia.org/w/index.php?title=Служебная:Вход&action=submitlogin&type=login&returnto=Википедия:Форум/Технический&returntoquery=curid%3D148270%26diff%3D67194912%26oldid%3D67194417, from 10.20.0.140 via cp1052 cp1052 ([10.64.32.104]:3128), Varnish XID 2658507825 Forwarded for: xxx.xx.x.xxx, 10.20.0.143, 10.20.0.143, 10.20.0.140 Error: 503, Service Unavailable at Sat, 06 Dec 2014 20:21:15 GMT"