cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
315
Views
0
Helpful
2
Replies

Cannot Access cisco sites from home broadband

Hello

Apologies, if this is not the right place to ask this question

For some reason, I cannot access certain cisco pages from Home broadband (VirginMedia)

It started coupe of months ago

https://mycase.cloudapps.cisco.com/case

https://devnetsandbox.cisco.com/RM/Diagram/Index/803ec3d3-ab55-4c59-99d0-d3a4dd4233eb?diagramType=Topology

http://cisco.com/go/pss

https://golearn.webex.com/lms/index.php?r=site/sso&sso_type=saml&sso_auth_mode=oauth2&sso_target=hydra&ctz_offset=3600&provisioning_timezone=Europe/London

http://cisco.com/go/pss

https://cloudsso.cisco.com/idp/SSO.saml2

 

all I get is

This site can’t be reached

cisco.com took too long to respond.

Try:

ERR_CONNECTION_TIMED_OUT
 
I'm not getting help from Broadband provider
I can access them when I switch to my mobile network or use a VPN
Was my IP blocked somewhere, by cisco?
 
Any help
Thanks
2 Replies 2

brendonrapp
Beginner
Beginner

I am encountering this EXACT same problem.

All of the links you provided are inaccessible to me from my home network. I encountered this issue when trying to login via cloudsso.cisco.com.

Like with you, I previously had no problem accessing these URLs. I don't use them frequently, but it's definitely within the last couple of months where they became inaccessible.

I stumbled across this forum post while desperately searching for anyone else complaining about being unable to reach cloudsso.cisco.com. This is the first and only one I've found, but it matches my experience exactly, down to the relative timing of when the site(s) stopped being reachable.

My home broadband provider is Comcast/Xfinity.

Some things I have discovered while troubleshooting:

  • If I take my entire home network out of the equation and plug a laptop directly into my cable modem, I am able to access cloudsso.cisco.com. Once I add a router back into the equation, the site becomes inaccessible again.
  • I have replaced my original router (TP-Link TL-R605) with a mini-PC running pfSense, no fix. The specific router does not appear to be the issue, although I intend to dig up at least another one or two to test.
  • I disabled every security feature I could find in the TP-Link, but nothing made a difference. I am working my way through pfSense config changes, but I am less familiar with them.
  • DNS does not appear to be the issue. I have tried using many different DNS providers. They all resolve the hostname to the appropriate IP, but I am simply not able to get any of my traffic to route to the address. 
  • Using a VPN service, like PrivateInternetAccess, instantly makes cloudsso.cisco.com accessible again.
  • My home network uses 10.10.10.x for its IP block. I can't imagine this would make any difference. Switching it back to a 192.168.x.x did not solve the problem.

Like you, I speculated that my cable modem's public IP address might have been blocked somehow. But the fact that I could access the site if I removed any router and plugged directly into my cable modem invalidated that theory. For whatever reason, adding that extra "hop" of a router renders those sites inaccessible.

EDIT: cloudsso.cisco.com resolves, alternatingly, to 173.37.144.211 and 72.163.4.74. In pfSense, I see the failed attempts at sending traffic to these addresses, here's a representative sample (the 24.x.x.x is my cable modem public IP, I've redacted it for privacy reasons):

 

PR       DIR SRC                      DEST                            STATE                AGE       EXP     PKTS    BYTES
tcp      In  10.10.10.182:58762       173.37.144.211:443          CLOSED:SYN_SENT     00:00:22  00:00:23        5      260
tcp      Out 24.x.x.x:54826           173.37.144.211:443        SYN_SENT:CLOSED       00:00:22  00:00:23        5      260
tcp      In  10.10.10.182:58764       173.37.144.211:443          CLOSED:SYN_SENT     00:00:22  00:00:23        5      260
tcp      Out 24.x.x.x:31201           173.37.144.211:443        SYN_SENT:CLOSED       00:00:22  00:00:23        5      260
tcp      In  10.10.10.182:58761       173.37.144.211:443          CLOSED:SYN_SENT     00:00:22  00:00:23        5      260
tcp      Out 24.x.x.x:8162            173.37.144.211:443        SYN_SENT:CLOSED       00:00:22  00:00:23        5      260

tcp      Out 24.x.x.x:7532            72.163.4.74:443           SYN_SENT:CLOSED       00:00:27  00:00:18        5      260
tcp      In  10.10.10.182:56590       72.163.4.74:443             CLOSED:SYN_SENT     00:00:27  00:00:18        5      260
tcp      Out 24.x.x.x:42323           72.163.4.74:443           SYN_SENT:CLOSED       00:00:27  00:00:18        5      260
tcp      In  10.10.10.182:56591       72.163.4.74:443             CLOSED:SYN_SENT     00:00:27  00:00:18        5      260
tcp      Out 24.x.x.x:3793            72.163.4.74:443           SYN_SENT:CLOSED       00:00:27  00:00:18        5      260

 

Thank you for your reply

I spent a lot of time with virgin media but they have no clue, after so many attempts I almost gave up and decided to cancel the broadband.

then a month later most of these links started to work for me without doing anything.

Thanks

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Recognize Your Peers