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Cannot log into admin on Joomla

I have several Joomla sites hosted under a single business account with www.oneandone.co.uk

On one of the sites I cannot log to the Administration Login.  When I enter my username and password I get the message:

Service Temporarily Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

The site itself is working fine.

My account is unlimited for storage and the database is within limits.  I have tried several computers and browsers so it is not a cache/cookies issue.

On all my other sites the Admin logins are working fine, so I don't think it is a www.oneandone.co.uk issue.

I have left for about 48 hours so it not a transient problem.

Any other suggestions?

I think it is Joomla Version 1.6 but cannot get to the control panel to confirm.

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1 Solution
Rowby GorenCommented:
I see this issue on a Wordpress site:



The situation on the server side was that they had implemented an extra security feature, the mod_security rule, guess to prevent recent hacker attacks as they said.

To resolve this, I had to login to my domain hosting service and disable "Extra Web Security", then the error stopped coming up. Though, it lasted 48hours+ to had this solved from problem detection to hosting support response... But it´s all cool now.

BTW I would be "concerned" that if there are hacker attacks on your site -- which would have triggered 1and1's actions.   Once you get control back of your site, via the admin panel you will want to install akeebabackup and backup your site and download the backup via php.

And you then might want to install the 1.5 version of admintools, also available from akeebabackup.com.

Rowby GorenCommented:
As I re-read my comment, I think the best solution at this stage is for you to contact 1and1 support and ask them what the issue is.

I am fairly certain it is a hosting issue and not an issue on your end -- especially if up until today you had no problems logging into joomla admin panel.

richardpetersAuthor Commented:
Thanks, I think you are correct.  Oneandone support denied any knowledge but another site has now had the same problem after some server updates, so I gone back to them.
Rowby GorenCommented:
I used to host at 1and1 and in general was not real impressed with them.  

After a few months I moved my sites to hostgator.

Also the developer of Akeebabackup recommends siteground.  I haven't used them yet, but plan to in the near future.   I consider the developer of akeeba  {and his other excellent product admintools) to be extremely ethical and knowledgeable -- so his recommendation of siteground is a credible endorsement.

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