My connection seems fine otherwise, but I wanted to make sure it wasn't an issue on the back end where I shouldn't keep trying to log in like runaway.
Sometimes, usually in the wee hours of the morning after several other DCs, the login scroll never comes up. Refreshing the tab with the web client gives a generic 404 error page, which persists until I restart the browser and clear all the sindome.org data from the cache.
This was happening before a few months ago, but it stopped without explanation. Running the web client on FF 66.0.5 x64. Internet connectivity remains constant throughout.