Dual Wan. Network DNS timeout
Just installed a second DSL line on my ER5120 and I get DNS not found issues with my network, both wired and wireless. Windows troubleshooting sometimes correct the issue, other times doesn't with DNS timeout message. I changed the DNS in each pc to Google and OpenDNS but for doesn't help, some pcs work ok other continue to timeout after random times.
Many times even windows toubleshoot can't help, the network icon shows full internet access but dns is down.
The first connection is static and the new one is dynamic. The DNJS servers are diferent for each connection.
Is there something I can do to fix this issue?