We run a proxy server in the DMZ of our ASA 5505. The ASA is connected to a cable modem. If we download something (microsoft downloads, etc.) the starts accurate with about 1,5 - 2,4 MB/sec then drops down to 300-400KB/sec. The same thing happens with direct connection to the firewall from LAN Interface. If we connect a PC directly to the cable modem the speed is steady.
Are there any parameters in the ASA configuration that could slow down traffic or connections ?
Thanks for any hint.