Authorization failed for sendsms

Hello I installed Kannel 1.4.0 on a Fedora core 2 and I always get this from 
smsbox:


[3] INFO: smsbox: Got HTTP request </cgi-bin/sendsms> from <*.*.*.*>
2005-03-25 13:03:08 [31336] [3] DEBUG: Status: 403 Answer: <Authorization 
failed for sendsms>
2005-03-25 13:03:08 [31336] [3] DEBUG: HTTP: Resetting HTTPClient for 
`*.*.*.*'.
2005-03-25 13:04:08 [31336] [1] DEBUG: Timeout for fd:22 appeares.
2005-03-25 13:04:08 [31336] [1] DEBUG: HTTP: Destroying HTTPClient area 
0x813bf90.
2005-03-25 13:04:08 [31336] [1] DEBUG: HTTP: Destroying HTTPClient for 
`*.*.*.*'.

I checked all the time but the user and password are correct. I installed it 
on a different PC and it works. Same configuration files, just changed 
IP-allowed. I'm becoming crazy. Why the dabug don't give more info?
IP non allowed, cannot write in ..., user unknowng or similar so to understand 
where is the problem?
Please I hope you can help me.
Giovanni