CM 1100 does not show login window

[ashmak]

My modem CM 1100 does not show login window at http://192.168.100.1

Is there any solution?

I am following these steps: 

1. Launch a web browser from a computer that is attached with an Ethernet cable to the cable modem or from a computer that is connected to a WiFi router that is attached with an Ethernet cable to the cable modem. - Done
2. Enter http://192.168.100.1. into the address bar of your web browser.
3. Click or tap Enter.
   A login window displays. - No login window displays?
4. Enter the cable modem user name and password.
   Note: The user name is admin and the default password is password. The user name and password are case-sensitive.
   The BASIC Home page displays.

[Kitsap]

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@ashmak wrote:

My modem CM 1100 does not show login window at http://192.168.100.1

Is there any solution?

I am following these steps: 

1. Launch a web browser from a computer that is attached with an Ethernet cable to the cable modem or from a computer that is connected to a WiFi router that is attached with an Ethernet cable to the cable modem. - Done
2. Enter http://192.168.100.1. into the address bar of your web browser.
3. Click or tap Enter.
   A login window displays. - No login window displays?
4. Enter the cable modem user name and password.
   Note: The user name is admin and the default password is password. The user name and password are case-sensitive.
   The BASIC Home page displays.

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Clear the cache on the web browser you are using.

Try a different web browser than the one you are using.

You using a Windows computer or iOS?

[ashmak]

@Kitsap 

I did that but it doesn't help.

 I used Safari and Chrome on my MacBook Pro. I also tried on my iPhone. For router, login window opens quickly at 192.168.1.1 but not for Modem.

Is there any solution?

[FURRYe38]

What brand and model is the router connected to the CM modem? 

Power off the modem and disconnect the wifi router from the modem and connect 1 wired PC to WAN port#1. Power ON the modem, after it's ready can you connect to the modem at 192.168.100.1 at all? 

[ashmak]

@FURRYe38 

Router is Orbi RBR50

The Modem does not have WAN port. It has LAN 1 and LAN 2. Do I connect my computer to LAN 1? Here is the photo of back of my modem.

[Kitsap]

Use LAN 1 for your Ethernet connection.  Leave LAN 2 empty.  The CM1100 supports link aggregation which your RBR50 does not.

[FURRYe38]

THese are considered WAN ports as these are assigned by the ISP for WAN IP addresses. Yes, I have this modem as well. Good Modem. 

@ashmak