I dont use Varnish , but when i rename the plugin folder to plugin1 and create new folder and name it plugin witch is empty, im able to login, and when i login i just delete the empty plugin folder and rename the plugin1 folder to plugin using FTP , Refresh, then all is working fine , and i can access the admin panel and do every thing regular , but when i log-out , i have to do this method again , so i believe this has nothing to do with wordpress core files !!! any suggestions ??
i dont know what is happening , i can login to the wordpress admin by the TEMP METHOD . but no one else can login .
The TEMP METHOD seams to work , but its TEMP only , this is so weird !!!
I have the same problem from 3 days now on an arabic version of wordpress site but the English wordpress is fine. both running on the same server .
and both are the latest 3.7.1 , i made no core update for the last 3 weeks , now i cant login same cookie error on the arabic website .
