I have a Cisco ASA. it's been up and running for years. all of a sudden we are havng problems.
I've replaced the ASA, upgrade the OS and been on the phone with Cisco 10 times.
I had our ISP's cable modem replaced and I replaced all of the cords.
We have 2 ISP's. Our backup ISP does not drop traffic at all.
Our main ISP will radomly drop traffic. It drops traffic about every 15-20 minutes, sometimes sooner and sometimes it's longer.
Doing a continuous ping to the ASA interface it will time out for about 15 seconds (5 pings time out) then it is back up again.
I can't figure out what is wrong and neither can Cisco. Is there a licensing issue? Something on the firewall that's blocking the traffic after a threshold is met?