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Thread: Erratic port switching
2015-02-01, 02:06 #1
Erratic port switching
If this is not the best place, can someone please point me to a very good networking site. The problem I am having seems very bizarre to me. I haven't been able to find anything of this nature searching online, I've tried every tweak I am aware of, and I've had the AT&T technician out here. He did seem very knowledgeable and was at a loss, too. However, after many days and untold hours on this I finally found what is at least an indication of the problem.
I have U-verse at 12 Mbps on Win7 and a Realtek PCIe GBE Family Controller. The problem is most noticeable on my music site (radiotunes.com, formerly sky.fm). Most of time it works perfectly well. However there are times when it starts cutting in & out or stops altogether. By watching Active Connections I found that when it cuts out the port assignment is being changed, and when it stops completely port reassignment has ceased (ports are not exhausted).
Now for the really bizarre part. This only happens at certain times of the day when one would expect network traffic to be heavier. Btw, U-verse is VDSL and not the standard DSL so traffic should not be a problem. Furthermore, radiotunes is a European site so I wouldn't expect it to be a site overload problem when it's 6:00 pm PST.
What it seems like to me is that something in Windows does not like what it is receiving on the music port during the busier times of the day and misinterprets that as needing to reassign the port. Beyond that, I have no idea what it is or what to do about it.
P.S. - I've tried turning off Comodo, doing malware scans, speed tests, using different browsers, and doing all the other standard things I can think of that one would normally do.
2015-02-01, 02:35 #2
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Are you using Flash Player in your browser to listen to the stream? If so you should see a connection on port 1935.
How are you viewing the port re-assignment?
2015-02-01, 14:37 #3
To answer your questions, I do use Flash and at the moment it is on 1669, but there's nothing consistent about the port Flash uses. However, it is stable for the time being. I view my open connections using Comodo's "View Active Connections". You can get the the same thing using the command prompt, but I don't remember the command right now, and I'm not sure if it shows the ports opening and closing in real time.