You can use OpenDNS OR google in place of you current ISP's DNS and it should get you back on destiny. Now this was done on an Xbone (so system adjustments will vary), but all you have to do is go into Settings > Network > select manual DNS. If you want Google DNS, enter 8.8.8.8 as the primary number and 8.8.4.4 as the secondary (it can be reversed and it'll work just the same). If you want to use OpenDNS, enter 208.67.220.220. into primary and 208.67.222.222 into secondary. Once the values have been entered, your xbone (ps4, etc.) will check connection after you hit B to back out to the dashboard and it'll say the connection is good. Restart your xbox BEFORE trying to jump back into destiny otherwise it won't work. Google might be a bit faster, but OpenDNS is more secure and has been around a bit longer (if that sort of thing matters to you). Just another suggestion in case you can't connect - but between the DNS options, you'll be able to get back into Destiny easily. Hope this helps anyone who still can't connect. btw..... this is sounding like a comcast/xfinity issue, so if you can't get online and you have this ISP, you might wanna manually change your DNS to the values listed above. Good Luck!!