Please list all the error codes you have seen. Like MultiMarkBoy mentioned, bee is a generic disconnect error for unstable connections, so the root cause may be elsewhere.
https://www.bungie.net/en/Help/Article/11791
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Many times it just disconnects without an error as well. Also, have checked with other games and there is no issue with disconnects and have even checked my actual connection to the router and the internet - however, destiny drops even when the connection is strong.