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dffy
20th Anniversary celebration
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1st Reply

Regular Visitor

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9 Messages

Friday, October 28th, 2022 6:33 PM

Closed

Suddenly port 9000 tcp is being blocked by xfinity/comcast??

I have been using Port 900 now for 10 years for my security system. As of a few days ago it was blocked. WHY?    

My security company & a couple Techs tried everything to unblock it .

They all say the same thing. Comcast/Xfinity is blocking it & only they can unblocked. 

SO why did Comcast/Xfinity block port 9000 & when will they unblock it? 

I need port 9000 unblock Now for I am at risk of harm without my security cameras working.

Question

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Updated 

2 years ago

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CCAshley1

Official Employee

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746 Messages

3 years ago

Hi, Ports on the internet are like virtual passageways where data can travel. All information on the internet passes through ports to get to and from computers and servers. When a certain port is known to cause vulnerability to the security and privacy of your information, Xfinity blocks it to protect you. 

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dffy

Regular Visitor

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9 Messages

@XfinityAshley​  So how do I get Xfinity to unblock it? I can't afford a new security system that doesn't use port 9000.

3 years ago

0

XfinityArmand

Official Employee

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2.1K Messages

We can take a look to see if that is a part of something that has been blocked and from there see if there is a possibility to have it unblocked.  

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

3 years ago

0

EG

Expert

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110.1K Messages

3 years ago

@dffy 

FWIW. Here is a list of the ports that Comcast blocks. That port is not listed;

https://www.xfinity.com/support/articles/list-of-blocked-ports 

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dffy

Regular Visitor

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9 Messages

@EG​  Well this one is ... and It is possible that whom ever was in charge of  blocking  1900 could have made an error & blocked 9000 instead. Has anyone looked into this?

1900 UDP SSDP Both Port 1900 is vulnerable to DoS attacks. IPv4/IPv

3 years ago

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zip21222

Contributor

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160 Messages

kinda like the original post had port 9000 (nine thousand) in the title, but port 900 (nine hundred) in the first sentence?

(grin)

3 years ago

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dffy

Regular Visitor

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9 Messages

Yes!  Typos happen all the time. To clear thing up I was talking abut Port 9000 not 900

(edited)

2 years ago

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