STUN and TURN(Traversal Using Relays around NAT) possibly causing connectivity issues?

ASUSjunkie

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Jun 14, 2015
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Firstly, I want to say I'm in the midst of some catastrophic system instabilities as posted here

http://www.tomshardware.com/answers/id-2682966/occasional-black-screen-visual-errors.html

I mention my disconnects but I don't believe they are related. I am learning, a lot, like a lot a lot about PC's at the moment but I've always been quick to figure things out. I'm here because I have no idea what I've found and I don't have the technical know how to rectify my current malfunctions.

Upon review of my network activity it TURNs(free joke there) out that there was something suspicious. Every time I disconnect there is a TURN:STUN:Binding Request to destination stun.l.google.com or stun3.l.google.com. Before these TURNs there are ICMPv6 and IGMP requests being made as well. IGMP Snooping is a new one to me so I'm still trying to wrap my head around that.

ISP: Charter. Not sure what is meant by connection type in relation to my ISP....

Router: Linksys EA6400 AC1600 Dual-Band Smart Wi-Fi

Between my roommate and I we have at LEAST(CONSTANTLY CONNECTED) 3 phones, 2 PCs both through internal on board LAN. OCCASIONALLY, we will have a tablet, a Playstation 3, and a printer give or take a few mobile devices and a laptop on. Maximum we're looking at 5-10 devices on a busy afternoon.

Make/Model of Switches and ports per switch: I am unsure what is being asked here as I've never had to check these before...

Connected through a regular server to get internet.

Unless I'm not connected obviously hahahahaha My build is mentioned in the link I posted. If you're not privy to it this is what I am CURRENTLY RUNNING:

Case: Raidmax Narwhal
MoBo:M4A89GTD PRO/USB3
GPU: Nvidia GeForce GTX 750
CPU: AMD Phenom II X2 550
PSU: Raidmax Hybrid 2 RX?630SS
RAM: 2 Paired Corsair Vengeance DDR3
OS: Windows 7 Professional x64
SDD: Kingston SV300S37A120G
HDD: WD10EAVS-00D7B1 (storage)


My problems started a couple of months ago when we had a fiber optic line cut about 70-80 miles from here. I was dealing with intermittent disconnects for about a month after the initial loss of internet. Our neighborhood experienced problems and blocks of my town were without internet or had spotty internet for this time. However, all the people I know of have been effectively reconnected with no issues.... including my roommate.... who is connected to the same router I'm on. Roughly six months later and a whole PC worth of replacements and adjustments I have had even the slightest iota of relief. I do have 5 saved logs from Microsoft Network Monitor 3.4 which has my network activity logged during these disconnects.

I'm very iffy about throwing all this out there due to the amount of info in these reports, explicitly my IP address. I'd be willing to dump as much as I can but uuuuugh I'd much rather just send it to a verified individual or have someone help me understand how this TURN is shitting on my internet and obviously how to fix it...

Any help would be marvelous!!!
 
Solution
You likely have some form of video chat program. Those request are made by end devices to try to solve the nat issue when you do peer to peer voice. The reason I suspect it is likely video is IGMP is part of a multicast which is video transmission but it is not supported by most ISP but lots of things try IGMP anyway.
You likely have some form of video chat program. Those request are made by end devices to try to solve the nat issue when you do peer to peer voice. The reason I suspect it is likely video is IGMP is part of a multicast which is video transmission but it is not supported by most ISP but lots of things try IGMP anyway.
 
Solution
Now what do you mean by video chat? I've uninstalled Skype and Curse and have no other "video messaging" clients on my PC as of now. I played a game of League of Legends and d/c'd twice in 25 minutes. Is there any way to eliminate using IGMP or is this protocol a mandatory thing? I'm a persistent troubleshooter so I will keep you updated as I go. Thank you for the lead!
 
Aaaaaaaaaaaaaaaaaaaaaaaaaaalso.... Would a massive multiplayer online game cause a IGMP connection? Since it would technically be video with a chat function? Am I correct?
 
IGMP is used for a number of things. Without getting into detail how multicast work it is pretty much like a network request to watch a certain TV channel.

It doesn't really matter although multicast has been around since the beginning of the internet no isp offers the service.

Even if they did your router likely does not support it and is discarding the messages. It should be a tiny amount of traffic and is not worth bothering with. You can use firewall filters on the machine producing it to filter it.

Pretty much the only place I have seen it used is to stream video to devices inside your house. The most common you will see is some security camera setups allow the cameras to use multicast to make it easier for multiple people to view the feeds.....but you must all be behind the same router unless you have your own private network with commercial routes.
 
It worked. I uninstalled my Skype and Curse, had my roommate do the same and my disconnects have ended. Thank you so much for the help! This has been a huge hurdle in attempting to get my PC stable again.

EDIT: SPOKE TOO SOON. Upon turning my PC on this morning I had my internet drop again. It has dropped twice in the last 4 hours..... I have blocked the connections for IGMP in Windows Firewall, however the connections are still being made.

IP Address: 54.213.100.191
Host of this IP: ec2-54-213-100-191.us-west-2.compute.amazonaws.com
Organization: Amazon.com
ISP: Amazon Technologies.

Not sure why the hell Amazon is getting in contact with my PC and actively shitting on my internet.
I don't even use fuggin Amazon
Like I've posted in the other thread I linked, I'm about to trash this entire PC and start over again because this is nonsense.
I've never in all of my years had a PC just shit out like this, pretty sure it's possessed....


EDIT: I've been up for the day and have encountered no d/cs. I have covered the full spread of the connections being made in Windows Firewall and updated my restrictions and seem to have had no problems so far... Not holding my breath. lol
 
Well I spoke too soon... AGAIN... Made it through one video this morning and had my PC disconnect. Turns out our router doesn't support IGMP disabling so ultimately my router may be the problem. I have blocked ALL IPv6 and IGMP, and blocked the Amazon router requests for ingoing and outgoing connections and my internet is still disconnecting....

EDIT: I've gone into my router and set up parental controls for specifically stun3.l.google.com and stun.l.google.com which are where these requests are being sent from. Hopefully this has some effect on this whole situation...
 
Yup no progress. PC is still timing out every hour or so. It seems some of my online games are what's triggering this response. How could this have started happening out of the blue?

EDIT: Legitimately the same connections I have set up to be blocked are still making it in. How is this possible?
Am I just missing something that's capable of allowing a blocked connection through?
 
I had disabled IPv6 and was getting seemingly more disconnects with it disabled then when enabled. I left it disabled and have seen a decrease in disconnects. I also reset my protocols, restored my firewall settings and readded protocols for inbound and outgoing signals from my suspected addresses.. However according to the first link posted in which outlined my more serious problem... Like I said, I have a fancy $800 paperweight. So as of now, I'm just gonna let my mobo battery sit out overnight in hopes that I may be able to boot to BIOS...