High network latence prevents audio and video

[timo12357]

Steps to reproduce

1. Confirm that the B-subscriber is on a high latency, > 50 ms, connection
2. Invite B-subscriber to a Nextcloud Talk call
3. Watch the rolling icon until end of time

Expected behaviour

The call should be connected and video and audio should be working despite the network latency, Everybody are now on webcalls due to Covid 19 and that increases network Latency. Talk should work also in a high latency environment.

Actual behaviour

The video call fails, and a rolling icon is shown. Audio fails. Chat messages work.

Server configuration detail

Operating system: Linux 2.6.32-042stab141.3 #1 SMP Fri Nov 15 22:45:34 MSK 2019 x86_64

Webserver: Apache/2.4.41 (Ubuntu) (apache2handler)

Database: mysql 10.0.38

PHP version:

7.2.29-1+ubuntu16.04.1+deb.sury.org+1
Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, sodium, session, standard, apache2handler, mysqlnd, PDO, xml, apcu, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, iconv, igbinary, imagick, imap, intl, json, exif, msgpack, mysqli, pdo_mysql, apc, posix, readline, redis, shmop, SimpleXML, smbclient, sockets, sysvmsg, sysvsem, sysvshm, tokenizer, wddx, xmlreader, xmlwriter, xsl, zip, Phar, memcached, libsmbclient, Zend OPcache, xdebug

Nextcloud version: 18.0.3 - 18.0.3.0

Updated from an older Nextcloud/ownCloud or fresh install: Updated from old

Where did you install Nextcloud from: Automatic update

Signing status

Array
(
)

List of activated apps

Enabled:
 - accessibility: 1.4.0
 - activity: 2.11.0
 - calendar: 2.0.2
 - cloud_federation_api: 1.1.0
 - comments: 1.8.0
 - contacts: 3.2.0
 - dav: 1.14.0
 - documentserver_community: 0.1.5
 - federatedfilesharing: 1.8.0
 - federation: 1.8.0
 - files: 1.13.1
 - files_external: 1.9.0
 - files_pdfviewer: 1.7.0
 - files_rightclick: 0.15.2
 - files_sharing: 1.10.1
 - files_trashbin: 1.8.0
 - files_versions: 1.11.0
 - files_videoplayer: 1.7.0
 - firstrunwizard: 2.7.0
 - issuetemplate: 0.6.0
 - logreader: 2.3.0
 - lookup_server_connector: 1.6.0
 - mail: 1.1.4
 - nextcloud_announcements: 1.7.0
 - notes: 3.2.0
 - notifications: 2.6.0
 - oauth2: 1.6.0
 - passman: 2.3.5
 - password_policy: 1.8.0
 - photos: 1.0.0
 - previewgenerator: 2.2.0
 - privacy: 1.2.0
 - provisioning_api: 1.8.0
 - recommendations: 0.6.0
 - serverinfo: 1.8.0
 - settings: 1.0.0
 - sharebymail: 1.8.0
 - spreed: 8.0.5
 - support: 1.1.0
 - survey_client: 1.6.0
 - systemtags: 1.8.0
 - text: 2.0.0
 - theming: 1.9.0
 - twofactor_backupcodes: 1.7.0
 - updatenotification: 1.8.0
 - user_ldap: 1.8.0
 - viewer: 1.2.0
 - workflowengine: 2.0.0
Disabled:
 - admin_audit
 - encryption
 - onlyoffice
 - richdocuments

Configuration (config/config.php)

{
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "localhost",
        "38116.s.time4vps.cloud"
    ],
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "dbtype": "mysql",
    "version": "18.0.3.0",
    "overwrite.cli.url": "http:\/\/localhost",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "maintenance": false,
    "memcache.local": "\\OC\\Memcache\\APCu",
    "memcache.locking": "\\OC\\Memcache\\Redis",
    "redis": {
        "host": "***REMOVED SENSITIVE VALUE***",
        "port": 6379
    },
    "mail_domain": "***REMOVED SENSITIVE VALUE***",
    "mail_from_address": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpmode": "smtp",
    "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpauthtype": "PLAIN",
    "mail_sendmailmode": "smtp",
    "mail_smtpauth": 1,
    "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
    "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
    "theme": "",
    "loglevel": 2,
    "updater.release.channel": "stable",
    "ldapIgnoreNamingRules": false,
    "ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory",
    "mysql.utf8mb4": true
}

Are you using external storage, if yes which one: No

Are you using encryption: true

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...

LDAP configuration (delete this par if not used)

Client configuration

Browser: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:74.0) Gecko/20100101 Firefox/74.0

Operating system: Server: Ubuntu 16.04, Clients Ubuntu 19.04

Logs

Web server error log

Nothing related found

Nextcloud log

Nothing related found
{"reqId":"Kp2Xj7PGVAwSXtufmzvQ","level":2,"time":"2020-03-31T11:45:14+00:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"normalizing failed for \"xxxsenstivexxxremovedxxx.pdf\"","userAgent":"--","version":"18.0.3.0"}

Browser log

Nothing related found

Edit: Removed the copied text from the actual behavior.

[nickvergessen]

This sounds more like a missing TURN server.
Did you set one up?

[timo12357]

@nickvergessen Yes, we are using coturn. Video and audio work in 90% of the cases, but in 10% not at all.
We tested this yesterday and found a clear correlation between high latency and failure to connect. Our engineer is working from home and sharing internet from his phone. From one side of the house he has low latency and the other high latency, about 75 ms ping. In a low latency environment video and audio work, with high latency video and audio fail. Text comes through at all times, but video or audio not.

[nickvergessen]

Sorry to say, but "75ms" is not high latency. In germany you have to be lucky to have that at all.

Mind to share a public conversation here, or send it to me via email (<my github name>@nextcloud.com)

[nickvergessen]

Turns out the TURN server is not completly configured.