REALLY strange Comcast admin page question (EG help!!)

I'm not sure why that glitch / scenario is happening, sorry. All I know is that when it is in bridge mode, the 10.0.0.1 address is not supposed to ever work at all anymore.

Hello, @AlanD! Thanks for taking the time to reach out to us here on the Xfinity Forums for support with your gateway. 

Given your description, it sounds like you are getting caught up at your router's UI. Depending on which one you are using, it can look very similar to ours but it's definitely different as you have to use 192.168.100. 1 to access it. 

If you still have the box it came in, you can check either the outside or there may even be a pamphlet on the inside that gives you the default login for that particular device. :)

FWIW, 192.168.100.1 is for accessing straight / plain vanilla cable modems and CC supplied combo gateway devices when they are in bridge mode.

Customer-owned stand-alone routers are typically accessed at 192.168.0.1 / 192.168.1.1 / 192.168.2.1

Comcast Tambrey -

Thanks for your reply!   I know I'm connected to my rented xFi gateway, not my router because I see the Xfinity logo as you can see from my attachment.  

When I connect directly to my gateway through Ethernet via 10.0.0.1,  using my saved password I can log in perfectly.

When I connect through my router via 192.168.100.1  my password is denied.  

It's like the Twilight Zone around here, lol.  

ComcastAbbie -

Thanks for your reply!

I tried using the long password which was on the bottom of my xFi gateway, but that didn't work.

A few days ago I DID go through the hassle of a factory reset, requiring I give Comcast a name and password of my wireless network even though I was going to bridge the gateway and that step was required, but unnecessary in my situation.     No change at all, it still didn't work.

I guess this isn't that big a deal.  If I need to get into my Comcast gateway, I can always ,just go directly into it via Ethernet and reboot. 

It's all just a mystery to me why this is going on.   Why would a password that I created always work directly, but not when going through my Linksys Velop router.  

ComcastAbbie,

I guess this just isn't my day.  When I click on the message icon and type "Comcast Abbie" into the name box, it says, "results not found"

Yup, it works fine now.  I sent you the info there.

@AlanD  @ComcastJamesH 

Please post any possible solutions for the issue here in the open forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.

No solutions yet.   The Comcast folks told me that I wasn't reaching my Comcast gateway's web page, but instead reaching my router's GUI.  That's why I couldn't sign in with my gateway's password. 

If you look at the picture I posted above, does THAT look like anything but the Comcast gateway?

Still a mystery, but if I figure anything out EG, I'll certainly post the solution here.  

FYI - My Modem is in Bridge mode and I access it all the time at 10.0.0.1

Never heard that in bridge mode the address changes to access the GUI interface. Just now tried the signing in at 192.168.100.1, I can sign in there as well with no problem.

Only the 192 addy worked in bridge mode in the past. They constantly are changing the firmware functions.

If you're still following this thread, I have narrowed my problem down, with still no solution.

When I connect my bridged Comcast xFi gateway directly to my computer via Ethernet,  I can access the gateway via http://10.0.0.1 with my password, and get into the settings.    If I then access the gateway via http://192.168.100.1,  I see the same sign-on screen but now my password does NOT work.   My Linksys router is not connected in either case.  

Since only the 192.168.100.1 works when the router IS connected, I'd love for this URL to work.  

Very strange.   I can't believe I'm connecting to two different gateways, so I'm perplexed.  

Any thoughts?   

Hi ComcastAmir --

Yes, I'm connected to my bridged Comcast xFi gateway directly via Ethernet cable, NO router in the path.     I can then access the gateway via 10.0.0.1 and sign in with my changed password.   If I then just go to 192.168.100.1 I see the same gateway sign in page, but now my changed password doesn't work, and I cannot change it because I'm locked out.   (If I put my router back in the system, I can't access the gateway via 10.0.0.1 anymore, only the 192.168.100.1  which has locked me out.)    

I hope I explained this clearly, lol.  

ComcastAmir --

Yes, I tried that and it DID work.   The problem is, if I take my xFi gateway out of bridge mode, I'd have two wireless networks which would create something called a 'double nat.'

To be honest, I'm not sure exactly what that is, but I've heard from most in this forum that if you DO connect your Comcast gateway to your own router, you SHOULD put it in Bridge mode.    I believe our friend EG has said that many times.  

I'd love a comment from you on that.  

THANKS,  I appreciate your response.   

@AlanD  From what I understand, you have a Comcast modem/router, and your own personal router. If you want to use your own personal router, the comcast/router must be put in bridge mode. As far as logging into the comcast modem/router, when in bridge mode, there`s nothing much to adjust anyway. except change the password. If you just want to use the comcast modem/router, then take it out of bridge mode ( usually does it automatically) and do not hook up your personal router.

 When using the Comcast modem/router by itself, to access it, just use the Xfi app.