[ikorolis]

This problem is Fixed Update New Version of VBulletin and VBAdvanced and transfer my website to new host.

Thank you for answers

[noppid]

this can happen when you talk to a page in a different language set then you use in our experience. Of course, that's just one reason. I would have no idea if that is your problem.

But you are accessing newthread.php while the error is about index.html.

Do you have a hack that does an outside call when posting for spam detection or something?

Do you have any SEO stuff that is trying to rewrite the URL to index.html?

[UKBusinessLive]

This is what i found about the 501 error...

The server does not support the functionality required to fulfill the request. This is the appropriate response when the server does not recognize the request method and is not capable of supporting it for any resource.

remember what we spoke about earler in the week with the custom 404 error pages you can make, well you can make them for 501 errors too

lets take a look at this example, and remember you can change it for a 501 error too!!

A 404 error means when you are trying to visit a page that doesn't exist. Like http://www.www.vbulletin.org/mypage.php .
When you visit that link you get:

Not Found
The requested URL /mypage.php was not found on this server.

This doesn't look very nice though, just text on a white page.
To change this we need a .htaccess file.
So just open word pad add this line:

ErrorDocument 404 /404.html

What does that do ?
You are telling the server, if a 404 error comes up, redirect to 404.html.

So just create a html file called 404.html or any name you want, but remember to change that in the htaccess.

And give this a nice feedback message like.

Sorry, the link that brought you to this page seems to be out of date or broken.

More errors :

* 302 - Redirect
* 400 - Bad Request
* 401 - Authorization Required
* 402 - Payment Required
* 403 - Forbidden
* 404 - File Not Found
* 405 - Method Not Allowed
* 406 - Not Acceptable
* 407 - Proxy Authentication Required
* 408 - Request Time-out
* 409 - Conflict
* 410 - Gone
* 411 - Length Required
* 412 - Precondition Failed
* 413 - Request Entity Too Large
* 414 - Request-URI Too Large
* 415 - Unsupported Media Type
* 500 - Internal Server Error
* 501 - Method Not Implemented
* 502 - Bad Gateway
* 503 - Service Temporarily Unavailable
* 504 - Gateway Time-out
* 505 - HTTP Version Not Supported

To create a custom error page for a 501 error just do the same:

ErrorDocument 501 /501.html

As you say it only happens sometimes, then at least you have the option of redirecting your members to an alernative page on your site.

Good Luck

[Dismounted]

Check your .htaccess files and try disabling vBulletin's GZIP compression.

[m-r-r]

Hi,
i have this error on my forums too,
i have use persian language like many other sites, but when i want post new thread, or reply to another topic, if my post containt more than 1page, i have recieved this error :

Method Not Implemented

GET to /forum/newthread.php not supported.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

i have not any plugin, disabled GZip... but error isn't solved !
help me plz