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I have a multisite Wordpress installation with 2 blogs, on different domains. One of them works fine, but I just realized that for the other, I can't access the admin area. I can log in, but when accessing /wp-admin the request never returns and eventually times out. It was working fine the last time I tried (a few weeks ago), and I didn't make any changes since then...

What could be causing this? How can I get more info to help diagnose the problem? I can't find any logs on the server...

EDIT: I was using Firefox when I saw this problem; I just tried again in Chrome, which seems to have a longer timeout, and the dashboard finally appeared. The other admin pages seem to work fine, but the dashboard takes a very, very long time to load.

BTW, I'm running Wordpress 3.3.2 on IIS.

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2 Answers 2

For people who find this in the future: there are a ton of different causes for wp-admin timeouts. I listed as many as I could find here with their corresponding solutions:

http://mzandstra.com/wordpress/how-to-fix-wp-admin-timeout-or-dashboard-not-loading/

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Post your answer here, don't spam with links ;) –  Krzysiek Dróżdż Jul 11 '13 at 18:24
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OK, I just found the problem: I had more than 5000 spam comments (most of them from an IP range I had blacklisted). Apparently it's a problem for the dashboard, although the comments page works fine... I deleted those comments directly in the DB, and everything is back to normal. Now I just need to find a way to completely block the source IPs in IIS, otherwise I'll have the same problem in a few weeks...

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