Visitor

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7 Messages

Tuesday, September 16th, 2025

Bookmine.co won’t load on Xfinity but works on VPN/mobile

The website bookmine.co does not load when connected to Xfinity internet, but it loads immediately when using mobile data or a VPN.

I have already:

  • Restarted my modem

  • Flushed DNS

  • Changed DNS servers (Google 8.8.8.8 / 8.8.4.4)

  • Disabled Advanced Security

This is not a device issue since it happens on multiple devices. It looks like a routing problem on Xfinity’s side. Can this please be escalated to the network engineering team?

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Expert

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113.3K Messages

22 hours ago

Have you tried performing a traceroute to the domain ? It may reveal where the blockage is occurring.

Visitor

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7 Messages

@EG​ Yes I ran a traceroute and the request times out after 8 hops

Expert

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113.3K Messages

20 hours ago

Please post it here (copy and paste the text).

Expert

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113.3K Messages

17 hours ago

Ok so your packets are making it beyond Comcast's web space and into a hosting provider's webspace, but they are being blocked (your Comcast WAN / public IP address) internally by their firewall for some reason (typically a blacklist). The IP address at hop #11 is registered to a company named Namecheap Inc. Suggest you contact them concerning this. https://www.namecheap.com/ 

Good luck !

(edited)

Visitor

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7 Messages

@EG​ Thanks, I emailed them and apparently the site bookmine.co is not registered with them, maybe just the traceroute hop belongs to namecheap im not sure

Visitor

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7 Messages

@user_h81ty5

Quick update: I followed your advice and contacted Namecheap. Their Domains Support team confirmed bookmine.co isn’t registered with them (it’s with GoDaddy), but traceroute/IP lookups show the server itself (69.57.162.10) sits inside Namecheap’s hosting network. 

So it looks like the site is hosted on Namecheap infrastructure, and Comcast IP ranges (including mine) are being blocked by their firewall. That’s why it works fine over VPN and hotspot but not directly over Comcast. 

At this point the fix has to come from Namecheap Hosting (or the site owner working with them), since the traffic leaves Comcast fine and dies in their network.

Expert

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113.3K Messages

16 hours ago

Good extra sluething there ! Best of luck !

Visitor

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7 Messages

@EG​ I’ve confirmed the website’s host (Namecheap) isn’t blocking my IP and sees no firewall hits. My traceroute from Comcast reaches 199.193.7.174 in Namecheap’s network, then fails before 69.57.162.10. The site works instantly on VPN/hotspot. Please escalate to Network Engineering to check routing/peering/return-path between Comcast (AS7922) and Namecheap’s network for 69.57.162.10. I can provide traceroute/TCP tests and Namecheap’s statement. If an xfinity engineer or somebody could help that would be much appreciated!

Visitor

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7 Messages

Could an **Official Xfinity Employee** please claim/escalate?

Summary (Salem, OR):
• Site works on VPN/hotspot, fails only on home Xfinity.
• TCP to 69.57.162.10 fails on ports 80 & 443 from home.
• Traceroute leaves Comcast cleanly, then stalls in destination network (Namecheap).
• Host confirms no firewall/WAF block and asked Comcast to check routing/return-path.

Evidence (PowerShell, today ~PT):
Test-NetConnection bookmine.co -Port 443  → TcpTestSucceeded: False
Test-NetConnection 69.57.162.10 -Port 443 → TcpTestSucceeded: False
Test-NetConnection bookmine.co -Port 80    → TcpTestSucceeded: False

Please escalate to **Network Engineering** to investigate routing/return-path between Comcast (AS7922) and 69.57.162.10.  
My public IPv4 (masked): 71.63.249.xx. I can DM the full IP and full logs. Thank you!

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