A&T&T Netgear ADSL Router/Modem incompatibility with Cisco ASA 5505 Firewall

We have a handful of locations where we still use AT&T ADSL for Internet. We use a Cisco ASA 5505 Firewall at these location to create an IP Sec Tunnel back into our company network. We static ips from AT&T in order to make this work. We have had these connections set up for some time. In the past we had even more.

We used to use the Motorola/Netopia ADSL Router at these locations. AT&T has stopped using these and due to out of date firmware and the fact that AT&T no longer supports the Motorola, we are using a Netgear ADSL Router that AT&T supplies (we do have to buy them) which they do support.
Now that we are using the Netgear Routers we have a connection issue at all of these locations. Sporadically, but at least once or twice a day the location will lose connectivity. A reboot of the Netgear router is necessary in order to get it back up.

AT&T, though, says it is our equipment as they show the circuit never went down.

Any help will be appreciated.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Davis McCarnOwnerCommented:
1) What is the model number of the Netgear and how is it configured?
2) Get the free version of PingPlotter ( https://www.pingplotter.com/freeware.html ), set it to check every 2.5 seconds and keep 500, point it at one of your ip's from a different location, and let it run.  If it shows a high Packet Loss (PL%) on a hop or "destination unreachable" at any point, AT&T is feeding you malarkey.

I had a client with three RDP's active all day from a remote location.  They were suddenly being disconnected once or twice each day.  Pingplotter showed a Time Warner box in Atlanta with a 25-30% packet loss.  It was absolutely a miserable task to get them to fix it; but, eventually, they did.
nociSoftware EngineerCommented:
IPSEC key renegotiation might take some time on CPU starved routers.
more time then is left on the tunnel...

To check that. Ping through the tunnel to verify tunnel uptime and ping to a global address to  verify DSL uptime.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Networking Hardware-Other

From novice to tech pro — start learning today.