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Newbie
Posts: 4
Registered: ‎20-08-2010

Minecraft

Hi,
I've been trying to play Minecraft with friends but have noticed it entirely fail to work at times, and at other times it works only tenuously and slowly.
I am on a legacy option 3 package and in the level 3 management phase.
I tried a simple telnet to the appropriate IP and port for a known working server (Other people connected and playing fine, hosted on a Linode VPS in London, no firewalls on my or it's end), and compared from my Plusnet connection and from another VPS:
james@daedalus:~/nebula$ telnet 109.74.205.221 25566
Trying 109.74.205.221... <timeout>
root@hometree:/etc/asterisk# telnet 109.74.205.221 25566
Trying 109.74.205.221...
Connected to 109.74.205.221.

(IP slightly mangled for security)
So; would Plusnet be blocking port 25566, and if so, why, given that gaming by their own traffic management policies should never be affected? I realize this is something of an exercise in futility since I know why (Minecraft evidently isn't in Ellacoya- it's worth noting that I'm using a nonstandard port, but most Minecraft servers _are_ on nonstandard ports) but I'd like to confirm that's what's happening and subsequently get it sorted out since this is most decidedly gaming and Plusnet appear to be entirely blocking it. So I'm a tad annoyed about that.
Edit: Oh, and if I tunnel through SSH to the box I can see the server from and play through that, it works fine except for being incredibly slow on account of SSH being throttled to the point where typing on remote boxes is horribly laggy. This tech was designed to work with low latency on acoustic couplers!
25 REPLIES
Community Veteran
Posts: 36,819
Thanks: 300
Fixes: 20
Registered: ‎15-06-2007

Re: Minecraft

If you are on Premier Option 3 then these are the speed restrictions http://www.plus.net/support/broadband/products/archive/bb_premier3.shtml which gives you a maximum of 512kbps on Level 3 Traffic Management
AFAIK they don't block ports but you should ensure that the Plusnet firewall is turned off
Newbie
Posts: 4
Registered: ‎20-08-2010

Re: Minecraft

Plusnet firewall has never been turned on; I should clarify, this is a recent development - I spent the rest of the day happily playing Minecraft and tried to reconnect in the evening to be met with failure. Given nothing has changed on my end, and the other end is also fine, the only remaining place where a problem could arise is at the ISP layer.
512kbps sounds a bit rich. I'm currently outperforming my home PC on my mobile phone on GPRS.
Edit (again!): "When the allowance is reached, peak-time file transfer applications such as peer-to-peer are blocked until your next billing date." So, could Minecraft be getting classified as P2P?
As for 512kbps, not sure how this tallies with that:
Community Veteran
Posts: 36,819
Thanks: 300
Fixes: 20
Registered: ‎15-06-2007

Re: Minecraft

Regarding the speed test 0.1Mb/s = 500kbps Edit - of course it isn't  Embarrassed
WRT classification you could try running Wireshark http://community.plus.net/library/faults/using-wireshark-for-data-capture/
Newbie
Posts: 4
Registered: ‎20-08-2010

Re: Minecraft

0.1Mbps does not equal 500kbps! That's just wrong.
1 megabit per second is 102.4 kilobits per second. And in case you were getting confused with megabytes/second, 0.1MBps in kbps = 819.2 kbps. Unless I've totally forgotten everything I learned about computer networking and so on.... but I think I'm right on all counts there.
Wireshark shows 3 SYN packets, no ACKs at all. Not a lot of use in this case, since to get an idea of classification I'd have to receive some response from the server that has passed through the Plusnet network.
Community Veteran
Posts: 36,819
Thanks: 300
Fixes: 20
Registered: ‎15-06-2007

Re: Minecraft

Rubbish
kilo = 1,000
mega = 1,000,000
Newbie
Posts: 4
Registered: ‎20-08-2010

Re: Minecraft

... yes, those are indeed SI units.
A few quick example calculators which I'm fairly certain yield correct results:
http://www.google.co.uk/search?rlz=1C1GGLS_enGB343GB343&aq=f&sourceid=chrome&ie=UTF-8&q=0.1Mb/s+in+k...
http://www.wolframalpha.com/input/?i=0.1Mb/s+in+kbps
But do the maths: 0.1 * 1000000 = 100000. 100000 / 1000 = 100. Now, we're dealing with bits and bytes so there's some 1024s in there but my point stands. I am working towards Cisco CCNA certification and have some fairly considerable experience in network design and implementation, and used to work for an ISP. So... yeah. Please learn some basic maths and basics about computers.
dick:quote
Community Veteran
Posts: 36,819
Thanks: 300
Fixes: 20
Registered: ‎15-06-2007

Re: Minecraft

Oh [Censored] - sorry  Embarrassed Embarrassed Embarrassed
It was too late at night  Sad
I was only reading this
Quote from: JHarrison
1 megabit per second is 102.4 kilobits per second.
and not my original foul up
Grafter
Posts: 80
Registered: ‎09-06-2009

Re: Minecraft

Apologies for revival of old thread but it appears that this wasn't resolved and i am getting the exact same problem. I can play Minecraft up until about 7pm with no lag, no disconnects, but after 7pm i am lucky to connect.
I ran WinMtr for half an hour and got the following results:
|------------------------------------------------------------------------------------------|
|                                      WinMTR statistics                                  |
|                      Host              -  %  | Sent | Recv | Best | Avrg | Wrst | Last |
|------------------------------------------------|------|------|------|------|------|------|
|                            192.168.0.1 -    1 | 2158 | 2154 |    0 |    0 |  12 |    3 |
|          lo0-central1.ptn-ag01.plus.net -    7 | 2158 | 2027 |  23 |  28 |  337 |  25 |
|            gi2-6-111.ptn-gw01.plus.net -    7 | 2158 | 2013 |  22 |  30 |  373 |  23 |
|                  po4.ptn-gw02.plus.net -    7 | 2158 | 2023 |  23 |  30 |  486 |  24 |
|                  po5.pte-gw02.plus.net -    7 | 2158 | 2022 |  22 |  28 |  264 |  23 |
|10ge.xe-0-0-0.linxb.ldn-teleh-dis-1.peer1.net -    6 | 2158 | 2047 |  22 |  26 |  399 |  23 |
|                  No response from host -  100 | 2158 |    0 |  600 |    0 |    0 |    0 |
|              vl2.uk1-dist-rt1.peer1.net -    1 | 2158 | 2157 |  25 |  28 |  472 |  38 |
|                          83.222.240.30 -    1 | 2158 | 2141 |  25 |  28 |  173 |  35 |
|________________________________________________|______|______|______|______|______|______|
  WinMTR 0.9 (c) 2010-2011 Appnor MSP - Fully Managed Hosting & Cloud Provider

I love this game, but i can't play it on our rented server. Please can someone advise?
Thanks  Smiley
Dabbler
Posts: 13
Registered: ‎04-02-2011

Re: Minecraft

Im having exactly the same problem. The data is being classified as 0x00 according to the wireshark capture. Would really appreciate this fixed ASAP.
Newbie
Posts: 1
Registered: ‎04-02-2011

Re: Minecraft

Minecraft is almost unplayable for me also. Please fix this so that it receives the appropriate priority.
Grafter
Posts: 1,300
Registered: ‎09-07-2007

Re: Minecraft

Is it running properly now?
has anyone sent in a ticket with a wireshark capture so that it can be added to the management switches?
Looking at starting playing this (bought it but havent got round to playing)  Smiley Looks fun.
Regards
Dabbler
Posts: 13
Registered: ‎04-02-2011

Re: Minecraft

Not fixed yet, have submitted a ticket with wireshark.
Dabbler
Posts: 13
Registered: ‎04-02-2011

Re: Minecraft

Plus net customer service is disgusting, still waiting for a response for my ticket, let alone a fix.
Grafter
Posts: 1,300
Registered: ‎09-07-2007

Re: Minecraft

They're working on front line support issues... (and still recruiting iirc)
Unfortunately wiresharks aren't a simple tech support issue, and you'll have to get the ticket put into the correct queue (networks)
Shouldnt take too long, signatures sometimes need collaboration with Arbor networks (which may take longer)
Regards