Connectivity
Connectivity and managing Your Comcast Business network
Back to Top

Slow Connection Speeds

SOLVED
BlazeLeo
Visitor

Slow Connection Speeds

As of the past week, it has been impossible for anyone to upload any large file to YouTube. With these uploads we are getting estimates of up to 1900 minutes. I understand that it takes a long time to upload video files (especially in HD), however this just seems ridiculous for a 7GB file.

 

I currently have the 50/10 business plan, and I am directly connected to the modem which comcast provides if that offers any help.

Accepted Solution

Re: Slow Connection Speeds

Are you actually observing slow speeds from normal upload and speed test sites? If not, you may try temporarily switching over to Twitch and see if that resolves the issue. 

View solution in context
Trusted Forum Contributor

Re: 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. 

Trusted Forum Contributor

Re: Slow Connection Speeds

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.  

 

 

BlazeLeo
Visitor

Re: Slow Connection Speeds

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?

Trusted Forum Contributor

Re: Slow Connection Speeds

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).

BlazeLeo
Visitor

Re: Slow Connection Speeds

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.

Trusted Forum Contributor

Re: Slow Connection Speeds

Are you actually observing slow speeds from normal upload and speed test sites? If not, you may try temporarily switching over to Twitch and see if that resolves the issue. 

BlazeLeo
Visitor

Re: Slow Connection Speeds

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?

 

TLSmiley Very HappyR - 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.

Highlighted
Trusted Forum Contributor

Re: Slow Connection Speeds

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. 

BlazeLeo
Visitor

Re: Slow Connection Speeds

Here are the stats for my Cable Modem:

 

Cable Modem

Initialization Procedure

Initialize HardwareComplete
Acquire Downstream ChannelComplete
Upstream RangingComplete
DHCP BoundComplete
Set Time-of-DayComplete
Download CM Configuration FileComplete
RegistrationComplete

REGISTRATION COMPLETE

 

Downstream Channel

Downstream Frequency597000000 Hz573000000 Hz579000000 Hz585000000 Hz591000000 Hz603000000 Hz609000000 Hz615000000 Hz
Lock StatusLockedLockedLockedLockedLockedLockedLockedLocked
Modulation256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM
Symbol Rate5.360537 Msym/sec5.360537 Msym/sec5.360537 Msym/sec5.360537 Msym/sec5.360537 Msym/sec5.360537 Msym/sec5.360537 Msym/sec5.360537 Msym/sec
Downstream Power-7.4 dBmV-6.9 dBmV-7.4 dBmV-6.6 dBmV-6.7 dBmV-5.8 dBmV-7.0 dBmV-6.7 dBmV
SNR37.8 dBmV37.9 dBmV38.2 dBmV38.2 dBmV38.4 dBmV38.6 dBmV38.2 dBmV37.9 dBmV

 

Upstream Channel

Upstream Frequency34800000 Hz27900000 Hz21000000 Hz0 Hz
Lock StatusLockedLockedLockedNot Locked
ModulationATDMAATDMAATDMAUnknown
Symbol Rate5120 sym/sec5120 sym/sec5120 sym/sec0 sym/sec
Upstream Power51.0 dBmV51.0 dBmV51.0 dBmV0 dBmV

 

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

 

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

 

Post with 0 views. PingPlotter Data
Trusted Forum Contributor

Re: Slow Connection Speeds

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. 

Trusted Forum Contributor

Re: Slow Connection Speeds

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.