Slow Connection Speeds

Is this just YouTube? Do you see the same issue in other places as well? 

From my experience YouTube likes to throttle upload under certain specifications. If the specific content server you are connecting to is overloaded they'll generally throttle. 

Hello BlazeLeo and welcome,

So you are uploading 7,000,000,000 bytes (or 7 GigaByte ) file in 1900 minutes, let's see what that speed approximately computes to in round numbers :

7,000,000,000 bytes / 1,900 minutes ~= 3,684,210.5 bytes / minute ~= 29,473,684 bits / minute ~= 491,228 bits / second

Now we both know that uploading files between to internet sites is always a direct function of the slower site network transport. This also takes into consideration the inter-networking ENET port location speeds that both computer a using and by this I mean 10M , 100M , or 1G bps. Again, if one side is 100 Mbps and the other is 1Gbps, then max speed between the 2 sites will be controlled @ 100 Mbps. There are many other transport speed aspects to consider like the I/O ENET packet-processing, CRC, etc., etc..

So in my mind's eye of seeing ~ 0.5Mbps uploading speed over the Internet does not seem that unreasonable. YouTube is definitely a site that has heavy volumes of high density incoming data files on their servers and without having full clustering with only direct parallel-processing software running on all systems, along with minimum 10GB ENET will not give anything more than what you currently getting. Comcast providing 50 Mbps down /10 Mbps up Internet speed to you is not the actual speed issue, as I've aforementioned.  

Hope this helps you out.  

That makes some sense with YouTube, I have now also started experiencing lag with FFXIV:ARR (I am trying to begin recording and streaming this for the channel). About a week ago, my ping was easily below 200ms, however, now when I play I will sometimes miss 5 seconds of action (all of this is without the overhead of trying to stream the game). Could this just be a coincidence of both YouTube and Square's servers being bottle necks and the fact that they are both happening at the same time and with the same issues?

It's very possible, yes. I don't know what your streaming setup is, but you may look into using a different codec which will produce slightly smaller file sizes. Your overall computer load is also going to effect your streaming situation, but I'm assuming that's not your issue?

What are you using to Stream and what are those settings? if you drop your Stream to something like 720 or 480 as a test do your ping issues go away? 

Personally I'm able to do a 1080p stream on my 50/10 connection without issues(at least network wise).

I did a test doing uploads (using compression before I upload to Youtube, or should I say I encode the videos from raw

) and I stream using OBS and an Elgato Game Capture Card or just my PC. Thing is speeds seem to have picked back up again. Perhaps this happened as I recently switched from Residential to Business (to properly support YouTube and streaming to Twitch), and this was a hold over of the residential system trying to enfore a cap.

I am now experiencing the slow downs again, in loading websites and when playing games such as League of Legends and Final Fantasy XIV: A Realm Reborn. Again this could be coinsidence, but I will also have trouble watching Hulu and YouTube as will my roomate. And if I start streaming, all of my network communication goes down the pipes. I understand that I can only be doing so much at once, but if I am solely streaming and playing a game (not excess from YouTube or Google Music) I shouldn't be having this problem. And I have tried streaming with games such as Wind Waker HD and Monster Hunter 3 Ultimate (not online) to make sure it wasn't the multiple connections. How can I start testing and diagnosing these issues?

TL:DR - My streams are choppy at best and I randomly jump in online games (like game freezes for 2 seconds and then catches up). I want to start diagnosing the problem.

Next time you notice the slow downs head over to http://10.1.10.1/ and post your modem stats from the "Cable modem" page. This can help us determine if signal quality is your issue. It'd also be worth running pingplotter in the background to a few major sites like Google and YouTube so you can see some graphical data. 

Here are the stats for my Cable Modem:

Cable Modem

Initialization Procedure

REGISTRATION COMPLETE

Downstream Channel

Upstream Channel

 Here are some tests from PingPlotter: (Hope an imgur album link works for you)

http://imgur.com/a/xWTcl#0

Your upstream signal on all of your channels is too high. 50 is supposed to be the limit and after that you could start seeing issues. Call up Comcast and let them know. They should see this and want to send a tech. If they don't see this, mention it to them. Either way, a tech will likely be needed to check the lines..etc. 

yes, i agree with kraze, the upstream power is high, and the downstreams are at less-than-ideal. you could potentially try removing unnecessary coaxial splitters if you have any, or possibly moving the modem closest to the first splitter.