Dropbox API: (55) SSL_write() returned SYSCALL, errno = 32

Hi @jknn
hmm, could you contact your host and ask them if they blocked content.dropboxapi.com on port 443?
Also, Did you updated BackWPUp to the latest version?
Thanks!

I asked my host and no outgoing ports are blocked.

Plugin is newest version 3.6.8.

Still have this issue. Anything to do? Can other people upload to Dropbox?

@jknn
Yes, most of BackWPUp users use Dropbox as the backup destination, I think the issue may be related to your PHP version, is it possible for you to change the PHP version to another one then try again?
if you using cPanel, you can easily do this from cPanel dashboard, or you can contact the hoster and give it a try ??
Hope that help ??

It is not that easy to change PHP version for me.

I use PHP 7.3.

Shouldn’t your plugin be compatible with this? Have you tested with PHP 7.3?

Hi @jknn
yes, it was tested with 7.3, also, I personally running about 20 sites with php 7.3.4 with latest BackWPUp version and Dropbox works just fine to me ??

And here is my server info, that I think may help your hoster because I think this may be related to the PHP version on your server:

WordPress version: 5.0.2
BackWPup Pro version: 3.6.8
PHP version: 7.3.4-1+ubuntu18.04.1+deb.sury.org+3  (64bit)
MySQL version: 5.7.25-0ubuntu0.18.04.2
cURL version: 7.58.0
cURL SSL version: OpenSSL/1.1.1b
Server self connect: Response Test O.K.
Server: Apache/2.4.29 (Ubuntu)
Operating System: Linux
PHP SAPI: apache2handler
MySQL Client encoding: utf8
PHP Memory limit: 256M
WP memory limit: 40M
WP maximum memory limit: 256M
Memory in use: 4.00 MB
Disabled PHP Functions:: pcntl_alarm, pcntl_fork, pcntl_waitpid, pcntl_wait, pcntl_wifexited, pcntl_wifstopped, pcntl_wifsignaled, pcntl_wifcontinued, pcntl_wexitstatus, pcntl_wtermsig, pcntl_wstopsig, pcntl_signal, pcntl_signal_get_handler, pcntl_signal_dispatch, pcntl_get_last_error, pcntl_strerror, pcntl_sigprocmask, pcntl_sigwaitinfo, pcntl_sigtimedwait, pcntl_exec, pcntl_getpriority, pcntl_setpriority, pcntl_async_signals, 
Loaded PHP Extensions:: Core, PDO, Phar, Reflection, SPL, SimpleXML, Zend OPcache, apache2handler, bz2, calendar, ctype, curl, date, dom, exif, fileinfo, filter, ftp, gettext, hash, iconv, json, libxml, mbstring, mysqli, mysqlnd, openssl, pcre, pdo_mysql, pdo_sqlite, posix, readline, session, shmop, sockets, sodium, sqlite3, standard, sysvmsg, sysvsem, sysvshm, tokenizer, wddx, xdebug, xml, xmlreader, xmlwriter, xsl, zip, zlib

@jknn
since we haven’t heard back from you, I’m going to mark it as resolved.
If you’re still having problems, feel free to let us know ;),

Btw, If you find BackWPUp is useful for you, we would really appreciate if you leave a positive review and rating.
This would encourage us to develop new free features and provide free support ??
https://www.ads-software.com/support/plugin/backwpup/reviews/