XF 1.5 forum returning 403 error all of a sudden?

gtrgriff3

Member
One of my forums that has been working fine until a couple of days ago is all of a sudden giving a 403 error.

All other forums work, nothing has changed on the server side, and this forum has worked without a hitch for months so I don't know what changed. Any suggestions?
 

gtrgriff3

Member
Sorry, maybe it's not a 403, I get the error:

Forbidden
You don't have permission to access /forum/index.php on this server.

And, like I said, there are 20+ other forums that work fine so it seems odd.
 

gtrgriff3

Member
Yes, I've seen that reply on other similar posts... but if nothing has changed how would it all of a sudden stop working?

I'm on a dedicated machine and the index.php url never changes, only the argument changes so I don't understand how mod_security would affect it, and more importantly why it would not affect it for months and then all of a sudden be an issue. Can you elaborate so I can do a better job of approaching the right person about this?
 
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