read error on connection to tcp://

Replies: 1

Since a couple of weeks we have the connection errors, but they seem to be coming more frequent in the last few days and we see these notices:

NOTICE: PHP message: objectcache.error: Redis server tcp://172.17.69.20:6380 went away
NOTICE: PHP message: objectcache.error: read error on connection to tcp://172.17.69.20:6380

The problem is that the WPML settings are reset to default in the icl_sitepress_settings in the wp_options table. It looks like Redis returns an empty response and and the site saves it in the database. We manually have to import the correct settings again. 

Is there any way you can help us figure out what is wrong. 
Underneath i provided you our config file. 

{ “token”: “••••••••4ddc”, “host”: “172.17.69.20”, “password”: “••••••••”, “port”: 6380, “retry_interval”: 30, “retries”: 3, “maxttl”: 172800, “compression”: “lz4”, “serializer”: “igbinary”, “timeout”: 0.1, “read_timeout”: 0.1, “split_alloptions”: true, “network_flush”: “all”, “prefetch”: true, “debug”: false, “strict”: false, “async_flush”: true, “backoff”: “smart”, “save_commands”: false, “persistent”: true, “non_persistent_groups”: [ “wpseo”, “yoast-seo-indexables”, “rewrite_rules”, “plugins”, “themes”, “sitepress-multilingual-cms” ] }