Jump to content

Comcast trouble


Recommended Posts

First of all....im running a Gateway laptop...its a school laptop. Its my moms laptop she got for her work. No anyways i use it through a dlink 624 and a DPC2100 Series Comcast modem at home. Im not running any bg applications/tray tasks or any other computers on the router...and no televisions are on. The wiring is all fine...i have a very short cable from the wall socket to the modem...i noticed a very big difference of performance with longer wires (around 500kBs slower) Ok so anyways im using cablenut cable & dsl 4000.ccs

1. Windows XP- P2P Tweak installed.

2. Comcast 6/384 plan.

3. Cablenut... dsl & cable 4000.ccs also tried 10000.ccs but no difference in speeds.

TCP properties for IP =  ()

Browser/OS = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051111 Firefox/1.5

Notes: Read the Analyzer FAQ if the above is not your IP address.

TCP options string = 020405b40103030201010402

MTU = 1500w

MTU is fully optimized for broadband.

MSS = 1460

Maximum useful data in each packet = 1460, which equals MSS.

Default Receive Window (RWIN) = 256960

RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)

Unscaled Receive Window = 64240

RWIN is a multiple of MSS

Other values for RWIN that might work well with your current MTU/MSS:

513920 (MSS x 44 * scale factor of 8)

128480 (MSS x 44 * scale factor of 2)

64240 (MSS x 44)

bandwidth * delay product (Note this is not a speed test):

Your RcvWindow limits you to: 10278.4 Kbps (1284.8 KBytes/s) @ 200ms

Your RcvWindow limits you to: 4111.36 Kbps (513.92 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 51 hops

TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349) = 00100000 (32)

Precedence (priority) = 001 (priority)

Delay = 0 (normal delay)

Throughput = 0 (normal throughput)

Reliability = 0 (normal reliability)

Cost = 0 (normal cost)

Check bit = 0 (correct, 8th checking bit must be zero)

DiffServ (RFC 2474) = CS1 001000 (8) - class 1 (RFC 2474). Similar forwarding behavior to the ToS Precedence field.

4. :::.. Download Stats ..:::

Connection is:: 6175 Kbps about 6.2 Mbps (tested with 5983 kB)

Download Speed is:: 754 kB/s

Tested From:: https://testmy.net (server2)

Test Time:: Mon Jan 23 2006 22:00:49 GMT-0800 (Pacific Standard Time)

Bottom Line:: 110X faster than 56K 1MB download in 1.36 sec

Diagnosis: Awesome! 20% + : 30.03 % faster than the average for host (Comcast.net)

Validation Link:: https://testmy.net/stats/id-TNJBYZAI4

5. Done

6. Done

7. Using LAN

8. Done

9. Did both

10. No firewall

11.No firewall

12. Scanned & Clear

13. Updated fully

14. Done

15. Using Cable & DSL 4000.ccs

Okay apart from that im getting great speeds on testmy.net and other tests. Here is what it comes down to. I have nothing running except this pc on the router....when i do downloads...my speeds are usually 200-300....they start at like 1mB/s  and then rapidly go down to 200. Nothing ever dls faster then that. Im sopposed to get like 700+kB. I have tried many diff sites/servers and i also have tried no tweaks....4000.ccs and 10000.ccs.

So how can i get my real speeds? I also tried bypassing the router but it still does the same thing.

Link to post
Share on other sites

The speedtests are showing good speeds.  Most often, when you cannot download files at speeds anywhere close to your cap, it is because of the server you are downloading from.  Keep in mind that the server is uploading at a certain speed, and likely uploading the same file to other users.  It is also possible that in the network between you and the server there is a bottleneck which restricts speed.  There is also the physical distance from you to the server.  It may also depend on the software you are using.

There are a lot of factors.  You may rarely see your actual download speed when dl'ing files over the net.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...