MR60 does not see newer firmware updates

I recently got an MR60 with 2 satellites from Costco. It came with 1.0.4.96 firmware version. It detected that there's a newer version 1.0.4.98. I had it update the firmware online. It did so and all units are now at 1.0.4.98 and checking for new firmware says "No new firmware available" as you can see below. However, from what I can see on the product page, there are 2 newer firmware versions available: 1.0.5.102 and the latest one 1.0.6.102. Any idea why the router doesn't detect any of these 2 newer versions?

Router MR60 MR60 V1.0.4.9 8 No new firmware available

Satellite MS60 Satellite-2 V1.0.4.98 No new firmware available

Satellite MS60 Satellite-1 V1.0.4.98 No new firmware available