TLDR: the thomson/technicolor router alg is messing up the game's udp connection (port 3074). To fix it unbind the CONE(UDP) application helper with following cli command "connection unbind application=CONE(UDP) port=3074" --- I work for an isp (1st lvl support customer service). We use a lot of different modem/routers. Some of them are thomson/technicolor. So far only customers who use thomson/technicolor routers (for example tg588, tg788, tg789) had issues with disconnects/cabbage errors. Yesterday i also downloaded destiny2 on my xbox one. Plugged in my tg588 (software version 10.5.8.E) and started to investigate. It doesnt matter if you have upnp enabled, setup a manual portforwarding or a "dmz". It doesnt affect the cabbage error, tho you will need portforwardings for an open nat typ. I guess otherwise multiplayer/coop wont work without issues - but i didnt test multiplayer/coop so far. The cabbage error is caused by the ALG (application layer gateway) also called application helper. To be more specific, the CONE(UDP) connection helper which is bound to udp port 3074. When i disabled the CONE(UDP) application helper by unbinding it from port 3074 the cabbage error was gone. I could reproduce the error by starting a new game, right after when you fight with zavala at tower plaza, there is the door to tower north, thats where the cabbage error happens everytime if the alg is bound to udp 3074. To change the configuration you probably need full access to the router cli (if telnet/ssh is enabled and what kind of configuration can be changed, depends on the defaultconfig/firmware, some isps lock the config up very tight). Connect via telnet or ssh to your default gateway. The command "connection bindlist" shows which application helpers are bound to which ports. For unbinding: "connection unbind application=CONE(UDP) port=3074" "save all" permanently saves the config. /to undo the change: "connection bind application=CONE(UDP) port=3074" If you don't have access to your router maybe your provider can help. Playing serveral hours without the alg bound to udp 3074 - no cabbage error so far. --- edit: corrected typos where i said port 3075 instead of 3074 --- edit2: the bungie network troubleshoot guide: https://www.bungie.net/en/Help/Troubleshoot?oid=13610 says that the ps4 uses also udp port 3478-3479, so you may have to unbind connection helpers that are bound to these ports too. just look for ports used by the game in "connection bindlist" and unbind everything that comes in to conflict with the udp game ports that are reported in the link. for example: "connection unbind application=CONE(UDP) port=3478-3479" --- edit3: multiple ps4 users confirmed that u only have to unbind port 3074 or portranges containing port 3074