wordpress - download failed, couldn't connect to host -


i haven't been able install new plugins or updating plugins after upgrading wordpress 4.3 on ubuntu server 12.04.5 32bit machine. clicking on "update" link that's associated specific plugin. , update less minute. time, took long , @ end, threw out error "download failed, couldn't connect host".

then, thought , guessed might new wordpress 4.3. downgraded previous version 4.2.4 , tried update plugin needs updating. took long , in end, gave same error message.

the strange thing haven't made changes ubuntu server in terms of firewall @ all.

my installed php version 5.5.25 , apache 2.4.12.

the permission of wp-config.php 644.

i don't know else look. appreciated.

thank in advance

did install correct .dll files in system directory? uninstall program , try running system repair , .dll file patcher


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