Interesting problem connecting to routerlogin.net

Hi,

I have a RAX54 and I'm able to get it setup and configured but I run into a weird problem where I can no longer access the routerlogin.net page after I've completed the setup and make a few updates. The changes that I make are:

1) switch the network to use 10.x instead of 192.x.

2) configure about 6-7 devices with static LAN addresses.

3) update the SSID names and passwords.

4) configure port forwarding and port triggering on a few items (for Fios).

After I make those changes and I get connected to the Internet, I can no longer access routerlogin.net, routerlogin.com or the IP address of the router.  For all, I get connection reset.  If I use curl, I see this error:

curl -I https://10.0.0.1/start.htm
curl: (28) SSL/TLS connection timeout

To 'fix' it, I can shutdown the router, unplug the internet cable, turn the router back on and I can access the UI again.  Once I plug the internet cable back in, then it's accessible again.

Does anyone have any suggestions for what might be interfering with accessing the start page?