Hello forummembers,
1. What is your advertised internet speed ?
200mbps down - 20mbps up
2. What actual transfer speed do you get?
http://www.speedtest.net/result/3872965114.png
3. Who is your Internet Provider (ISP), and what type of connection do you have ?
UPC (netherlands) with ADSL cable
4. What are your current settings ? do a TCP/IP Analyzer test and copy/paste the results in your post.
Full info:
TCP options string = 020405b40103030801010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default TCP Receive Window (RWIN) = 65536
RWIN Scaling (RFC1323) = 8 bits (scale factor: 2^8=256)
Unscaled TCP Receive Window = 256
You seem to be using Google Chrome. Note that Chrome can modify the TCP Window for sockets it creates under some OSes, and therefore servers may not get your correct RWIN value. You may want to test with a different browser. FAQ
RWIN is not fully optimized. The unscaled RWIN value is lower than it should be. Also, RWIN being close to and above 65535 does not justify the header overhead of enabling TCP 1323 Options. You might want to use one of the recommended RWIN values below.
For optimum performance, consider changing RWIN to a multiple of MSS.
Other RWIN values that might work well with your current MTU/MSS:
64240 (up to 2 Mbit lines, depending on latency. MSS * 44)
128480 (1-5 Mbit lines, depending on latency. MSS * 44 * 2)
256960 (2-14 Mbit lines, depending on latency. MSS * 44 * 2^2)
513920 (8-30 Mbit lines, depending on latency. MSS * 44 * 2^3)
1027840 (25-60 Mbit lines depending on latency. MSS * 44 * 2^4)
bandwidth * delay product (Note this is not a speed test):
Your TCP Window limits you to: 2621 kbps (328 KBytes/s) @ 200ms
Your TCP Window limits you to: 1049 kbps (131 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 119 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)
Compact info:
« SpeedGuide.net TCP Analyzer Results »
Tested on: 2014.10.31 06:44
IP address: 62.163.xxx.xxx
Client OS/browser: Windows 8.1 (Chrome 38.0.2125.111)
TCP options string: 020405b40103030801010402
MSS: 1460
MTU: 1500
TCP Window: 65536 (NOT multiple of MSS)
RWIN Scaling: 8 bits (2^8=256)
Unscaled RWIN : 256
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 119
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)
5. Your modem/router/ap brand ? (i.e. Motorola SB6100 cable modem, Linksys WRT54GS Wi-Fi router, etc.)
modem = Thomson TWG-870
Router = Dlink DIR-655
6. Your Operating System ? (i.e. XP,Vista 64bit,Windows 7, etc.)
Windows 8.1 64bit
I've noticed that my ms is hopping a lot and that my download and upload speed is going up and down.
I'd love to optimize my internet as much as possible so it is more stable and that I can get the most out of it.
The only problem is, is that I'm not an expert at this so this is why I'm asking you guys to help me out with this.
Any help is welcome, also some guides with explaining how all these things work are welcome. I'm curious on how this works so.
Kind regards,
SeroX
