Only 1 pc unknowingly block access to Cisco ASA5505 (SSH.Telnet, ASDM)

[Tan kok heng]

Hi,

i have setup a new ASA5505, most of our pc getting DHCP from ASA5505, all my pc/laptop can SSH/ and ASDM into the Cisco ASA for administration.

however there is 1 Lenovo Laptop (Window XP) unable to ping, unable to ASDM into cisco asas5505, this pc is getting DHCP from ASA5505 as well and able to surf net as other PCs do.

from ASA can ping to this Lenovo Laptop ip address, however only this Lenovo Laptop unable to access the cisco asa management portal.

would you advise what is the likely cause and what could be check?

Thank you

[Rudy Sanjoko]

try to check the firewall setting on that laptop, perhaps it's not allowing some services e.g. ssl/tsl. try to check the access-list rule and the pool addresses for the dhcp on the asa, make sure the access-list is not allowing only some parts of ip addresses in that pool.