The weasel error is caused by packet loss or a disconnection between the user’s home network and Bungie servers. This can be due to ISP saturation or general internet congestion. The problem can also be caused by an incorrect setup. Following Bungie’s [url=https://help.bungie.net/hc/en-us/articles/360049496531]Network guide[/url] [url=https://help.bungie.net/hc/en-us/articles/360049496531]Advanced network guide[/url] And also in some cases, Bungie is issuing a ban. But most times it is the above.