Getting the same error. Assuming the wide ChaptGPT outage is sending more people to Claude which is why it's gone down too now. Answer from ButtermilkRusk on reddit.com
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ClaudeLog
claudelog.com › home › troubleshooting
ClaudeLog - Claude Code Docs, Guides, Tutorials & Best Practices
Fix Claude Code problems: installation errors, permission issues, connection failures, performance problems, and WSL troubleshooting.
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Claude
support.claude.com › en › articles › 12466728-understanding-claude-error-messages
Understanding Claude Error Messages | Claude Help Center
When capacity is constrained, you may see this message when chatting with Claude: "Due to unexpected capacity constraints, Claude is unable to respond to your message. Please try again soon."
Videos
01:07
🌐 YouTube
Claude ai Internal Server Error (Quick fix) - YouTube
May 22, 2025
🌐 reddit.com
r/ClaudeAI on Reddit: Can’t Log In – Anyone Else Having This ...
August 22, 2024
02:14
🌐 YouTube
Claude AI Internal Server Error Explained May 2025 | What’s Causing ...
May 27, 2025
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GitHub
github.com › orgs › community › discussions › 163739
❗️Claude 4 in Copilot Chat gives constant "I'm sorry but there was an error" message · community · Discussion #163739
Until GitHub or Anthropic confirms a fix, Claude may remain unstable in Copilot Chat. Hopefully GitHub updates their Changelog if this is a known service-side incident. Beta Was this translation helpful? Give feedback. ... There was an error while loading. Please reload this page. Something went wrong. There was an error while loading. Please reload this page. ... Using Sonnet 3.7 and 4.0 via JetBrains Copilot plugin, and I regularly see "Sorry, an error occurred while generating a response".
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Reddit
reddit.com › r/claudeai › literally can't use claude. it gives error something went wrong try again later. my chats doesn't get loaded, i can start a new chat,it will go for a little while before new chats gives error as well. i literally can't access my history. reinstalled app, data and cache cleared.pro user here.
r/ClaudeAI on Reddit: Literally can't use claude. It gives error something went wrong try again later. My chats doesn't get loaded, i can start a new chat,it will go for a little while before new chats gives error as well. I literally can't access my history. Reinstalled app, data and cache cleared.Pro user here.
1 week ago - I'm in the exact same boat, first noticed it this morning, figured there might be an outage, but tried logging in again a few minutes ago and it's still happening. Was really hoping someone here would've had some sort of fix. ... I downgraded to an older version. It is working now ... Delete current version ,and download a previous Claude version .17 and install that Continue this thread Continue this thread
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Begins with AI
beginswithai.com › claude-ai-errors
Claude.ai Error Wiki: Complete List of Problems (2025) - Begins w/ AI
March 14, 2025 - Possible Causes: Using free-tier Claude during busy hours (9AM ~ 12PM, PST). ... Possible Causes: Having a prompt with attached files that’s over 15000 words. ... Possible Causes: Trying to add docs or images that are bigger than 10 megabytes ...
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Reddit
reddit.com › r/claudeai › what is this error message and how do i fix it?
r/ClaudeAI on Reddit: What is this error message and how do I fix it?
June 4, 2024 -

Been refreshing for about 10 minutes now. Tried other claude.ai sites. I'm still payingfor this subscription -- what's going on?

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Getting the same error. Assuming the wide ChaptGPT outage is sending more people to Claude which is why it's gone down too now.
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Wonderful both GPT and Claude down, how do I function now?
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Downdetector
downdetector.com › status › claude-ai
Claude AI down? Current problems and outages | Downdetector
Add your postcode or address for a more detailed view of what is happening at your location with Claude AI · x · User denied geolocation access, please reset location settings and press allow to continue · Please enter a valid postcode or full address · An error has occurred. Please try again shortly ·
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Reddit
reddit.com › r/claudeai › claude code web stuck... normal claude code often stuck too
r/ClaudeAI on Reddit: Claude Code Web stuck... Normal Claude Code often stuck too
November 14, 2025 -

It seems like the connection from me to the server isn't stable or something i don't know.. its stuck so often like this

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Same issue. It happened in almost all of my conversation at some point; the more context the more likely it happens. Sometimes if you wait enough it will eventually work. But I had 3 conversation that never worked again even after a few days retrying. I think it's not a connection issue, but rather that the context is so big that it's hard for it to be processed; it required more ressources and the "time to first token" is very big, leading to the frontend app believing there is a connection issue. That's just a guess though.
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It's absolutely unusable at the moment. It has been stuck on "Starting Claude Code..." for over 5 hours. "Retry connection" does nothing. Refreshing the page does nothing. This isn't only not useful it's an actual blocker. I like to have Claude break up it's work into smaller chunks and then execute them one-by-one (sometime over the course of a few days). Now I have to continue its work because it's stuck and if it gets unstuck I have to change the plan entirely. I have to get it to pull new commits and basically start over. I really enjoy Claude Code locally in the CLI. It's funny that getting these free credits has actually made me like the product significantly less.
Find elsewhere
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JustAnswer
justanswer.com › software › qmeur-error-message-every-time-try-sign-claude.html
I get an error message every time I try to sign in to claude using google account. Claude will return soon it happens
If Claude returns an error after requesting your phone number during Google sign-in, it may be a verification or server issue. Ensure your phone number is entered correctly and linked to your Google account.
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JetBrains
intellij-support.jetbrains.com › hc › en-us › community › posts › 28319218413330
WebStorm AI Assistant Claude 4: Unknown server error has occurred. – IDEs Support (IntelliJ Platform) | JetBrains
If you are still encountering the problem, please create a support ticket (https://www.jetbrains.com/support/) and attach the debug logs or upload logs (https://uploads.jetbrains.com/) and provide the Upload ID in the thread so I can investigate ...
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Reddit
reddit.com › r/claudeai › error - claude is unable to respond to your message. please try again soon.
r/ClaudeAI on Reddit: Error - Claude is unable to respond to your message. Please try again soon.
March 25, 2024 -

Due to unexpected capacity constraints, Claude is unable to

respond to your message. Please try again soon.

I'm working on a 50k word pdf and seeing the above error.

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Yeah I'm getting errors too. Technical issues, nothing we can do but try again later...
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Reddit
reddit.com › r/claudeai › unable to use claude today - "we are unable to serve your request"
r/ClaudeAI on Reddit: Unable to use Claude today - "We are unable to serve your request"
February 1, 2024 -

I am a Claude Pro subscriber, and the service has been working great prior to today. This morning I found myself unable to access my conversations, and even to logout. The webpage loads, but any actions all gave the same error ("We are unable to serve your request.", in the upper right hand corner of the screen). Then, when I forced a logout via deleting my cookies, I have been unable to login.

Even just opening the webpage gives a "We are unable to serve your request" error. I have tried multiple browsers, and even changed network configurations. Attempting a login gives more instances of the same error. All other websites work perfectly.

Any ideas? Anyone know what might be going on or ideas I could try? I contacted Anthropic via support, but the bot says they typically respond within 5 days. 😒

EDIT: 2 hours later, it has started working again.

EDIT2: The next day, and the problem is back again. 😢 I can't do anything in Claude without just a stream of errors. This is so frustrating as a paying user.

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I'm getting the same issue. Down Detector states nothing is wrong. Even if it is due to the uptick in users, this looks pretty bad for a company not being able to service requests for so long when customers are paying them hard earned cash.
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It was a vpn for me that did it
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Zypa
zypa.in › claude-ai-internal-server-error
Fix Claude 500 Internal Server ERROR - Expert's Fix (2025)
2 weeks ago - Try a Different Device or Browser → Switching devices or browsers might discover if the problem is local to your system. Ensure Stable Internet Connection → Restart your router or switch to a stronger network.
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Reddit
reddit.com › r/claudeai › i’m facing a serious bug in claude for a month. i can’t use it anymore.
r/ClaudeAI on Reddit: I’m facing a serious bug in Claude for a month. I can’t use it anymore.
September 28, 2025 -

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.

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The same thing is happening via browser. I just can’t use Claude anymore, and I’ve paid for it (Pro User).
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I am sure that "network unknown error" is not related to the client network connection. I suspect it is an error on the Anthropic side. I have the same issue here (Oslo, Norway)
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Reddit
reddit.com › r/claudeai › anyone else getting "an error has occurred"?
r/ClaudeAI on Reddit: Anyone Else Getting "An Error Has Occurred"?
May 7, 2024 -

I've been trying to use Claude all day and have not been able to continue a single chat long or short. I've been trying and all i get is "An Error Has Occurred Please Try Again". Is this happening for anyone else?

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Yeah it's been like half a day, can't even get anthropics actual site to load to see outages like last time. I sure hope they use that military money to buy some servers or something jesus
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Claude
support.claude.com › en › collections › 4078531-claude
Claude | Claude Help Center
Skip to main content · All Collections · Claude · 71 articles · Getting Started with Claude · What is Claude · What are some things I can use Claude for · Where can I access Claude · How up-to-date is Claude's training data
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Seminarsonly.com
seminarsonly.com › home › error fix › claude there was an error logging you in. if the problem persists contact support for assistance.
Claude There was an error logging you in. If the problem persists contact support for assistance.
October 31, 2025 - If you’re attempting to log in via a browser, try switching to a different browser (e.g., Chrome → Firefox → Edge) or even a different device (e.g., phone, tablet, or another computer) to see if the issue persists. Sometimes login errors are due to server-side issues or maintenance on ...
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Anthropic
docs.anthropic.com › en › docs › claude-code › troubleshooting
Troubleshooting - Claude Code Docs
If you’re using Claude Code on WSL2 with JetBrains IDEs and getting “No available IDEs detected” errors, this is likely due to WSL2’s networking configuration or Windows Firewall blocking the connection. WSL2 uses NAT networking by default, which can prevent IDE detection. You have two options: Option 1: Configure Windows Firewall (recommended) ... New-NetFirewallRule -DisplayName "Allow WSL2 Internal Traffic" -Direction Inbound -Protocol TCP -Action Allow -RemoteAddress 172.21.0.0/16 -LocalAddress 172.21.0.0/16
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Reddit
reddit.com › r/claudeai › immediate error, unable to register or sign in
r/ClaudeAI on Reddit: Immediate Error, Unable to Register or Sign In
January 24, 2024 -

I am unable to sign up/log in to Claude via my PC. Immediately upon visiting the site, I am greeted with a couple of "We are unable to serve your request" errors without even doing anything. If I enter an email or click "Continue with Google," I get the error again. However, I've been able to sign up, log in to and use Claude from my Android phone. Has anyone else experienced this or have any insight?

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I know this post is two months old, but I'm seeing the same thing on mobile. I get stuck in an endless "Continue with Google" loop. However, I'm not having the problem on my PC. VPN is off in all cases.
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I saw this same reddit post twice and never put my solution: I would go on the site and go to “Site settings” next to the url and then for some reason “Google Sign-In” was blocked for me even though I just used claude a week ago
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Hostingseekers
hostingseekers.com › hostingseekers - blog › how to fix claude ai internal server error (500, 403, 429 & more)
How to Fix Claude AI Internal Server Error
August 8, 2025 - If the servers are overloaded, patience is the key. Revisit after 5-10 minutes and try again. Most of the backend issues get resolved more quickly. Most of the time, the issue isn’t with Claude, but with your internet connection.