400 Bad Request This server does not support the operation requested by your client.

Current Orbir RBR50V2 firmware version is V2.5.1.16. Connected to a Motorola Surfboard SB6121 modem on Xfinity. I know the firmware of the Orbi Router because I can get to the router home page, which displays the firmware version but there is a popup on the page about Circle. The rest of the home page not covered by the popup is greyed out and nothing is clickable. When I click the X in the upper right of the popup to close it with any browser, IE, Edge, Firefox or Chrome will bring me to a 400 Bad request page.

If I manually enter orbilogin.com/adv_index.htm in the browser I can see the advanced tab without interference from the Circle popup.

When I click on Administration\Firmware Update on the left menu of the Advanced tab page I get a 400 Bad Request. I also get a 400 Bad request when clicking on Administration\Attached Devices. All other menu items work.

I have not reset the router as others have commented that they still had 400 bad request pages after doing so.

I have not installed the firmware on the 2 sattelites either. Quite frankly, one would think you would have to do that from the router page? If not, I do not know how.

I actually installed the circle app on my cellphone, after not being able to log in to the orbi app and that did not change anything. I have downloaded the 2.7.1.60 firmware files for the sattelites and router to my desktop but, as I have mentioned, I cannot get to the firmware update pages to apply them. Thank you for your assistance.