I would check and ensure that you have the most current firmware available, when doing this the wrvs4400n has two hardware versions so make sure that you select the corect firmware for the hardware version you have. If that does not help corect the i...
Can I ask what the fimware version is that you are running on both devices? Also you can contact SBSC at 866-606-1866 for help with trouble shooting this issue.Thanks