Вот такая вот ошибка в логах
Error federation Exception: {"Exception":"GuzzleHttp\\Exception\\ConnectException","Message":"cURL error 7: Failed to connect to owncloud.url port 443: Connection refused","Code":0,"Trace":"#0 \/var\/www\/owncloud\/3rdparty\/guzzlehttp\/guzzle\/src\/RequestFsm.php(104): GuzzleHttp\\Exception\\RequestException::wrapException(Object(GuzzleHttp\\Message\\Request), Object(GuzzleHttp\\Ring\\Exception\\ConnectException))\n#1 \/var\/www\/owncloud\/3rdparty\/guzzlehttp\/guzzle\/src\/RequestFsm.php(132): GuzzleHttp\\RequestFsm->__invoke(Object(GuzzleHttp\\Transaction))\n#2 \/var\/www\/owncloud\/3rdparty\/react\/promise\/src\/FulfilledPromise.php(25): GuzzleHttp\\RequestFsm->GuzzleHttp\\{closure}(Array)\n#3 \/var\/www\/owncloud\/3rdparty\/guzzlehttp\/ringphp\/src\/Future\/CompletedFutureValue.php(55): React\\Promise\\FulfilledPromise->then(Object(Closure), NULL, NULL)\n#4 \/var\/www\/owncloud\/3rdparty\/guzzlehttp\/guzzle\/src\/Message\/FutureResponse.php(43): GuzzleHttp\\Ring\\Future\\CompletedFutureValue->then(Object(Closure), NULL, NULL)\n#5 \/var\/www\/owncloud\/3rdparty\/guzzlehttp\/guzzle\/src\/RequestFsm.php(135): GuzzleHttp\\Message\\FutureResponse::proxy(Object(GuzzleHttp\\Ring\\Future\\CompletedFutureArray), Object(Closure))\n#6 \/var\/www\/owncloud\/3rdparty\/guzzlehttp\/guzzle\/src\/Client.php(165): GuzzleHttp\\RequestFsm->__invoke(Object(GuzzleHttp\\Transaction))\n#7 \/var\/www\/owncloud\/3rdparty\/guzzlehttp\/guzzle\/src\/Client.php(150): GuzzleHttp\\Client->send(Object(GuzzleHttp\\Message\\Request))\n#8 \/var\/www\/owncloud\/lib\/private\/Http\/Client\/Client.php(202): GuzzleHttp\\Client->post('https:\/\/cloud.w...', Array)\n#9 \/var\/www\/owncloud\/apps\/federation\/lib\/BackgroundJob\/RequestSharedSecret.php(155): OC\\Http\\Client\\Client->post('https:\/\/cloud.w...', Array)\n#10 \/var\/www\/owncloud\/lib\/private\/BackgroundJob\/Job.php(52): OCA\\Federation\\BackgroundJob\\RequestSharedSecret->run(Array)\n#11 \/var\/www\/owncloud\/apps\/federation\/lib\/BackgroundJob\/RequestSharedSecret.php(134): OC\\BackgroundJob\\Job->execute(Object(OC\\BackgroundJob\\JobList), Object(OC\\Log))\n#12 \/var\/www\/owncloud\/apps\/federation\/lib\/BackgroundJob\/RequestSharedSecret.php(119): OCA\\Federation\\BackgroundJob\\RequestSharedSecret->parentExecute(Object(OC\\BackgroundJob\\JobList), Object(OC\\Log))\n#13 \/var\/www\/owncloud\/cron.php(146): OCA\\Federation\\BackgroundJob\\RequestSharedSecret->execute(Object(OC\\BackgroundJob\\JobList), Object(OC\\Log))\n#14 {main}","File":"\/var\/www\/owncloud\/3rdparty\/guzzlehttp\/guzzle\/src\/Exception\/RequestException.php","Line":49}
но я ее не понимаю(( Но так как нет ни слова про ldap - я подумал что дело не в етом