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HomeDocsClaude Code CLI 28 Oct 2026
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Troubleshoot installation and login changedtroubleshoot-install

Upstream edited this page at 28 Oct 2026 18:37 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 28 Oct 2026 19:07 UTC.

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11661166### OAuth login fails in WSL2, SSH, or containers
11671167 
1168When Claude Code runs in WSL2, on a remote machine over SSH, or inside a container, the browser usually opens on a different host and its redirect can't reach Claude Code's local callback server. After you sign in, the browser shows a login code instead of redirecting back automatically. Paste that code into the terminal at the `Paste code here if prompted` prompt to complete login.
1168If no browser opens, or the browser signs you in and then shows a connection error for a `localhost` address, you can finish signing in without fixing either problem. Sign in through the separate login URL that the terminal shows above its paste prompt instead:
11691169 
1170If the browser doesn't open at all from WSL2, set the `BROWSER` environment variable to your Windows browser path:
1170**1. Copy the login URL**
11711171 
1172```bash theme={null}
1173export BROWSER="/mnt/c/Program Files/Google/Chrome/Application/chrome.exe"
1174claude
1175```
1172At the interactive login prompt, press `c` to copy the URL, or select it in the terminal. With `claude auth login`, copy the URL that it prints.
11761173 
1177Alternatively, press `c` at the interactive login prompt to copy the OAuth URL, or copy the URL that `claude auth login` prints, and open it in a browser on your local machine.
1174**2. Sign in through that URL**
11781175 
1176Open the URL in a browser on your local machine and sign in. The browser then shows a code instead of returning to `localhost`.
1177 
1178**3. Paste the code**
1179 
1180Paste that code into the terminal at the prompt that begins `Paste code here`.
1181 
11791182If pasting the code into the interactive prompt does nothing, your terminal's paste binding likely isn't reaching the input field. Try your terminal's alternate paste shortcut, often right-click or Shift+Insert in Windows Terminal, or use `claude auth login` instead, which reads the pasted code from standard input:
11801183 
11811184```bash theme={null}
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11831186```
11841187 
11851188This fallback also applies on native Windows or any terminal where pasting into the interactive prompt fails.
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1190On WSL2, if no browser opened, you can also let Claude Code open your Windows browser next time by setting the `BROWSER` environment variable to that browser's path:
1191 
1192```bash theme={null}
1193export BROWSER="/mnt/c/Program Files/Google/Chrome/Application/chrome.exe"
1194claude
1195```
11861196 
11871197### Not logged in or token expired
11881198 
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