Httperror code 303

Greetings to all. I ran into a 303 issue when syncing Anki (see screenshot). The app itself doesn’t want to sync, but AnkiWeb works perfectly! I tried everything that chatgpt offered me and everything that is recommended on the Internet. I turned off antiviruses, changed VPNs, reinstalled the client itself, nothing helped. Moreover, this problem appeared almost simultaneously on my two PCs. Please help me, I’ve been struggling with this problem for 5 days


now, I can’t study properly.

I assume they are using the same internet connection?

Do you live in an area of the world where access to certain servers might be shut down abruptly (e.g., Anki syncing problem (“error sending request for url()”) - #12 by Danika_Dakika )? It might be beyond your or our control.

If you can’t get it working, you can rely on manual “collection transfer” for now. Collection Transfer - AnkiMobile Manual

For searchability: reading stream, ConnectionAborted, stream failure

Yay, I solved the problem based on your tip, thank you very much (I’m from Russia, by the way, so maybe many Russians have the same problem).
Basically, I use zapret-discord-youtube, and I added the following lines to the “autohosts” file: ankiweb(.)net and sync(.)ankiweb.net
I’d like to add a download link for zapret here, but I don’t know if that’s allowed according to the forum rules, but I got the general idea across.

Just to be on the safe side – we appreciate you not doing that. But thank you for posting your solution! I think that’s similar to what someone in the Reddit thread found.