Clinton Electronics DVR stops streaming

Here it goes:

Clinton Electronics DVR Cricket in a decentralized network behind a Comcast Router with a Linksys SR216 16 Port switch.  DVR has been assigned a public static ip.

The first DVR worked without issue for 5-6 months.  We had to replace it due to a completely non-networking related issue.  Replacement DVR had non latest update and latest update and still experienced the same following issue:

After X period of time [and this varies from 3-4 HRS up to 2-3 days] the video is no longer able to be viewed over the internet [internal to LAN or external over WAN].   The following has been done:

1.  Comcast replaced cable modem/Router to newer 22mbps/5mbps router.
2.  Have inserted privately assigned static IP's [192.168.1.x] with port forwarding of traffic [80 & 7000] to that static ip.
3.  Comcast reconfigured cable modem such that the public static ip now appears behind and in front of the cable modem.
4.  Whenever a change a network change is made [ie - insert new ip address] the DVR will work for a while; then the same issue occurs.
5.  There are no firewalls, antivirus software interfering in this instance.
6.  DVR itself works fine as you plug a monitor into the DVR and it's streaming just fine.  

Any ideas?  Potential Comcast bandwidth issue?
LVL 4
BGTSLLCAsked:
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Al JeeCommented:
Yes. It's very possible that Comcast is the culprit.

How many viewers have accessed [or are accessing] the video at the time it becomes unavailable?

It is strange that they haven't mentioned it though.
Then again, it is Comcast.
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BGTSLLCAuthor Commented:
Only one person at a time.
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Al JeeCommented:
How about accumulative use?
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BGTSLLCAuthor Commented:
it's only one person and that is the owner.  he is the primary person and really no one else as it allows for only one person at a time anyway.

I know it's a Comcast issue; had another person say it sounds like Comcast, and you are the 3rd.
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Al JeeCommented:
Yeah.
It doesn't sound like hardware [or software] at your end.

Maybe the Comcast algorithms target your stream after a certain number of uses, etc. and block it.
Comcast has a less that stellar reputation in the way they handle their Internet service and their customer support in general.
Have you tried to get any solutions from their tech support?

If you have an option for another ISP you might approach them with this problem and see if they will work with you.

 
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BGTSLLCAuthor Commented:
I've spent over 5-6 hours either on the phone or onsite.  At one point the tech was so frustrated after 3.5 hrs he was just going to leave.

I intend to give them another call though and press far harder this time.
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Al JeeCommented:
Good luck.


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