We have recently changed from a single AT&T U-verse modem setup, to a new Linksys LRT244 Dual WAN router and have added a second AT&T U-verse modem. The router does the "load balancing" with out the need for a separate network device.
The setup of the 2x AT&T U-verse Business modems and the Linksys Dual WAN router is working really well.
The problem we are having since changing our network is that the "OpenDNS Updater" software that is installed on all computers in the office. There are 6 computers in the office, and only 2 are having a problem with the "OpenDNS Updater" application windows appears and flashes 2 different IP addresses slowly. When I open the application manually and click on the "update now" button in the section labeled "IP Address" it flashes between 2 different IP address really fast then stops on one of the IP addresses. The IP addresses are 9x.4x.1xx.1x and the other 107.x.x.x. which I have checked are the "outside" the office IP addresses. (IP address are marked with "x" before this network is live, and I don't want them posted to a public forums). The same thing happens in our OpenDNS account where the two IP address mentioned above show up but only one at a time.
I have tried changing the Linksys LRT224 DNS setting but then the connection to the internet does not work. What I can assume is that AT&T does not want any other DNS used other then what they provide. If I reverse the DNS change back to the default and "power cycle" the Linksys router and both AT&T modems everything works like before. _THAT IS NOT OK_, I use the OpenDNS service to be the 1st line of defense when of office employees use the internet in the office.
Is there something I missing or does the OpenDNS service not work correctly with a Dual WAN router?
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