I have the same issue on both Xbox One and PC in Destiny 2. I can log-in, select character, get to the director, and select a destination. That's the end of the working part, I load in wherever I go, no players, enemies, NPCs, etc for tower or planets. Then shortly after I'm kicked to main menu with lettuce/cabbage error codes. I've tried different wifi bandwidths, ethernet, and clearing my system cache, nothing works. If worth noting, I can play any other game on-line without issue on PC or Xbox.
Hey there, Appreciate you reaching out to us with this issue. So here is a little context on this error code and some advice on how to tackle this. [url=https://www.bungie.net/en/Help/Article/46243]Cabbage[/url] - This potentially could be the connection to your ISP having issues which could be creating your overall problem. If the steps suggested in the link above still don't remedy your issue please take some time to go through our [url=https://www.bungie.net/en/Support/Troubleshoot?oid=12915]Network Troubleshooting Guide[/url] to further work through your current issue.
Are you using a Thompson or Technicolor modem by chance?