A customer are experiencing problems/unstability using QuickVPN on Win7, together with SA520.
Here are one of his emails to Cisco support (you can watch the entire case on: SR 616890081, closed by Cisco, but problem still exists)
Can we do anything to help him?
As I have said, I can connect to the SA, the configuration is in order. The problem is that the SAs is very unstable. Sometimes you get a connection sometimes you don't.
I experience this problem with 4 SA520s that I have configured for 4 separate customers. Sometimes when you don't get connection it helps restarting the SA, but sometimes it dosen't. Sometimes after waiting a few hours you are able to connect again, but sometimes a full reconfig of VPN is neede.
This problem seem to be "initiated" randomly by Win 7 logons,but when this happens no computer regardless of which OS they run can get in.
To me this seems to be a huge incompatibility problem with the quickvpn feature and Win 7.
Now my customer have tried the Cisco VPN client, but this won't work correctly either...
Here is his comments to this VPN client.
He really need a solution to this.
Hey, we'venowtriedwith Cisco'sVPNclient.Itworksalmost.It'sjustthat theDNSis notpassed on. Itsimplylacksthe optiontospecifythisinSA520 You canputadynamiciprangethatwill behanded outtoVPNclientsasthey connect. Thisthey getassigned,andone caneg.ping theserverandrunupagainstthisconnection(locatedatthisipaddress192.168.1.11).
I youon the other hand write SERVER1,DNS lookup does not work.Anditalso lackstobe ableto specifywheretogetDNSfromtheconfigfordynamiciprange. Thisseemsto be a majorblunderfromCisco. Aworkaroundisto addSERVER1in thehostsfileoneachPCthatwillusethe solution.However, this isnotgoodenough.
Good news, we have just released a release candidate for MR4. This release has many enhancements to the Cisco VPN Client supportability. You now can do either split tunnel or ful tunnel. You can also specify Secondary DNS/WINS servers to help in name resolution. To request the release candidate, please send an email firstname.lastname@example.org please include your Cisco.com User ID in the subject line of the email.