I’m facing a serious bug in my Claude (iOS) that is blocking me from using it.

Whenever I send a prompt, I receive a message:

“ Error while sending message A network unknown error occurred. Try again. “

Well, I’m “trying again” for a month now and this error is still happening. I tried different networks too, the error remains.

I uploaded here a picture informing the Claude version and video reproducing the bug.

Is someone facing the same?

I’ve sent an email to [email protected], but I don’t know if it is enough.

Not sure if there's anything going on but I didn't see anything on the status page or Reddit. Whenever I try using Claude both via the app or the website it fails to send messages or load entirely. It's been like this for 2 days straight, anyone else having these issues?

In case there are any people out there like me who are new to using Claude, this "will return soon" message can actually be an error. Claude could be up and running and you can still get this. It can be some kind of cookie/cache problem. When you get the message, open another browser and see if that works, or use your phone. If Claude is working on them, then clear the Claude related cookies and cache. Here are the step as precisely told to me by Claude. Your browser probably has slightly different names for settings and were to look.

Clear cache and cookies specifically for Claude.ai—go to Settings > Privacy & Security > Cookies and Site Data > Manage Data, search for "claude.ai" and remove all entries. This addresses the most common culprit: stale authentication tokens or corrupted session data that can make the site think there's a service disruption when there isn't.

Next, the deeper archaeological work:

Check if the browser has any extensions that might be interfering—particularly ad blockers, privacy tools, or VPNs that could be blocking necessary requests. Try opening Claude.ai in a private/incognito window first; if it works there, an extension is likely the culprit.

Update the browser to the latest version if you haven't recently. Sometimes authentication systems rely on newer web standards that older browser versions don't fully support.

The nuclear option:

If the above fails, try creating a fresh browser profile (type about:profiles in the address bar) and test Claude.ai there. This isolates whether the issue is with your specific browser configuration or the browser itself.