Trying to connect directly to a siemens optiset 410 economy handset via a switch, using an old compaq armada we can do this, yet using all the newer laptops in our company, a mixture of dells and hp’s we cannot connect directly to this handset. (The handset uses a web browser with SSL, SSL isn’t the problem however as I can access all other SSL websites I have access to and have re-registered the .DLL’s and ran sfc.exe).
The laptop (lets call it lap1) which is the armada and can connect via the web browser through the switch to the phone, cannot be pinged by any other laptop or desktop plugged into this same switch and given an IP in the address range, yet lap1 can ping these other desktops and laptops, also the VoIP handset, the siemens optipoint 410 economy can ping the other desktops and laptops but can’t ping back to lap1.
Is there some sort of network setting on the armada which is stopping other laptops, desktops and the phone from pinging to it, which is allowing it to directly access this handset even though other laptops can’t?
Both laptops have the same version IE, I’ve tried firefox, re-registered .dll’s, used sfc.exe, windows firewall is off, subnets are identical, ip addresses are all valid. All laptops I’ve tried have the same setup from what I can see as lap1, XP, SP2, IE same.
Any help or possible solutions would be greatly appreciated.