With either Firefox or Chrome, you can hit F12 to bring up the “Developer Tools” dialog. Click the Console tab. Do you see any errors there?
Uncaught TypeError: Cannot read property ‘length’ of undefined
at Function.each (jquery.min-0ebb125a54a3.js:2)
at HTMLDocument.<anonymous> (system-0ebb125a54a3.js:1)
at j (jquery.min-0ebb125a54a3.js:2)
at Object.fireWith [as resolveWith] (jquery.min-0ebb125a54a3.js:2)
at Function.ready (jquery.min-0ebb125a54a3.js:2)
at HTMLDocument.I (jquery.min-0ebb125a54a3.js:2)
Thank you to Support team for helping me solve the issue. For anyone else with this problem here is the fix.
Its a bug with at least up to 1.27.1. developer said they will fix in future.
Fix is factory reset, then reconfigure device. upon the factory reset and turning everything back on. Everything else works as intended. Except after upgrading from 1.24 -> 1.27, no longer can get into router from wan side https. not sure why. Everything else worked including upgrading and syncing time with browser now. 😉