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UPDATE: &nbsp;Oddly enough I have 1 Mac and 1Vista machine on the network and both are not effected by this plague. &nbsp;Makes me think that this might be a bad Microsoft Update....
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UPDATE:  Oddly enough I have 1 Mac and 1Vista machine on the network and both are not effected by this plague.  Makes me think that this might be a bad Microsoft Update....

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It would not be the first time a bad Msoft update killed something.<br />
XP SP3 is supposed to have the same IP stack as Vista. Are any of the affected machines SP3?
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It would not be the first time a bad Msoft update killed something.
XP SP3 is supposed to have the same IP stack as Vista. Are any of the affected machines SP3?

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I have 50 users in my environment who all translate to a single public IP address using NAT overload on a pix 515. &nbsp;Usually when testing throughput on speedtest.net, my users were getting &nbsp;80mb down and 70mb up. &nbsp; A few days ago i noticed that the numbers dropped significantly &nbsp;to 35/25. &nbsp;I was able to narrow down the problem to pix nat overload function by assigning a static one to one address to an inside client and the clients speed were restored to 80/70. &nbsp;I checked xlate and found aprox. 600 translations - after doing clear xlate , the problem did not resolve. &nbsp;I am stumped and appreciate anyone jumping on this. &nbsp;
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I have 50 users in my environment who all translate to a single public IP address using NAT overload on a pix 515.  Usually when testing throughput on speedtest.net, my users were getting  80mb down and 70mb up.   A few days ago i noticed that the numbers dropped significantly  to 35/25.  I was able to narrow down the problem to pix nat overload function by assigning a static one to one address to an inside client and the clients speed were restored to 80/70.  I checked xlate and found aprox. 600 translations - after doing clear xlate , the problem did not resolve.  I am stumped and appreciate anyone jumping on this.  

Slow internet connection using NAT overload.

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).