Unusual problem with ASA 5505

[websters]

Hi,

I'm having this very unusual problem with ASA 5505.
ASA was configured almost two years ago. No problem till now (of course).
For some reason ASA is blocking one IP.
Should I mention that no change to config or internal network is done.
If I bypass ASA and plug-in directly in to ISP router no IP blocking.
This is from log (when I tried to use FTP):
7 Nov 04 2009 12:18:41 609002 97.74.144.146 Teardown local-host outside:97.74.144.146 duration 0:00:00

6 Nov 04 2009 12:18:41 302014 97.74.144.146 192.168.0.101 Teardown TCP connection 3411 for outside:97.74.144.146/21 to inside:192.168.0.101/1564 duration 0:00:00 bytes 0 TCP Reset-O

6 Nov 04 2009 12:18:41 302013 97.74.144.146 192.168.0.101 Built outbound TCP connection 3411 for outside:97.74.144.146/21 (97.74.144.146/21) to inside:192.168.0.101/1564 (75.250.20.50/2549)

7 Nov 04 2009 12:18:41 609001 97.74.144.146 Built local-host outside:97.74.144.146

I tried to ping, www ... nothing, result is the same, getting "Teardown TCP connection".

Any help would be highly appreciated.

Thanks.

 

[Cgmanimator]

Hi Websters,

How many devices are connected to the ASA? I have a similar issue where we have 15 devices fighting for the internet.
This may be due to the 10 user licenses which comes standard with the ASA 5505.

-cgman