Please Help, Connection Dropping !!

[Vish32608]

If anyone can please help me I would be very appreciative.

I have a P4 2.4 with cable internet service that is fed via satellite from my apt complex. I continue to have trouble with my connection dropping. I then have to shut down the computer, disconnect the modem power and reboot.

Also, my connection speed is horrible, about 250-300kb.sec downstream only. I have tried many tweaks here, but am unable to increase my MTU.

Please help.

--Vish

Acquire Downstream Channel Locked 153000000 Hz
Connectivity state OK operational
Boot state OK operational
Latest Adjustment Time OK Sun Oct 12 17:12:50 2003
Get Configuraton File OK silver.cm
Security Disable Disable
---------------------------------------------------------

Lock Status Locked Modulation QAM64
Channel ID 0 Symbol rate 5056941 sym/sec
Downstream Frequency 153000000 Hz Max Bit Rate 512000 bps
Downstream Power 17.00 dBmV SNR 37 dB


Upstream Channel
The data shown in the table below provides information about the signal being transmitted to
the network from your cable modem.
Lock Status Locked Modulation QPSK
Channel ID 1 Symbol rate 1280 ksym/sec
Upstream Frequency 35440000 Hz Max Bit Rate 128000 bps
Upstream Power 43.00 dBmV
------------------------------------------------------------------
TCP options string = 020405640103030201010402
MTU = 1420
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
MSS = 1380
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.

Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)
Unscaled Receive Window = 64240

For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
507840 (MSS x 46 * scale factor of 8)
253920 (MSS x 46 * scale factor of 4)
126960 (MSS x 46 * scale factor of 2)
63480 (MSS x 46)
bandwidth * delay product:

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 = 54 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000

[Vish32608]

Does anyone have any ideas on what is wrong or see any problematic numbers here???????????

[mccoffee]

What windows verison you got ??

[Vish32608]

Moccoffee,

I have windows XP and use no VPN software or other software to connect to the net. I also do not share my connection.

Should I post here or on the forum?

Thanks, Vishal

[mccoffee]

Also make sure you have all the windows updates

if the optimizer didn't work try the following

Start Registry Editor.


Locate and then click the following key in the registry, where AdapterIDNumber is a hexadecimal number:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}\{AdapterIDNumber}\Connection


In the Connection key, check the Name value to determine if it matches the name of the Internet connection that you found in step 2.

If the Name value matches the name of the Internet connection, note the name of the {AdapterIDNumber} key.

If the Name value does not match the name of the Internet connection, repeat this step to check the Name value in the next {AdapterIDNumber}\Connection key in the registry.


Locate and then click the following key in the registry, where AdapterIDNumber is the hexadecimal ID number of the Internet connection that you noted in step 5:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Interfaces\{AdapterIDNumber}


On the Edit menu, click Add Value, and then add the following registry value, where MaxMTUSize is the maximum supported MTU size that you discovered earlier in the Ping tests:

Value name: MTU
Data type: REG_DWORD
Radix: Decimal
Value data: MaxMTUSize


Quit Registry Editor.

[Vish32608]

I see several adapter ID numbers and am unsure which one is correct. Also, this may help with my speed a little, but do you also know why my connections are dropping. Do any of my numbers look out of whack. Is a Downstream Power of 17.00
acceptable?

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}\{B0F3AF2C-DC14-4C64-83D6-9C014FFC4D6D}

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}\{EB77906A-D03F-46BD-9D94-056770D0BA5C}

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}\{F19B5FB1-B7CA-421A-83AF-3BBEA63519A6}

[mccoffee]

Scrap that ideal try this goto my computer control panel network dial up connections highlight tcpip click remove. Reboot then goto my computer control panel network and dialup connections install protocol tcpip. Then try the sgoptimizer idea that was stated eairler.

[Vish32608]

Mccoffee,

I tried to do that. When I click network connections I see 1394 connection and local area network. I cannot delete LAN. Also when I also R click and go to properties I see TCP/IP protocol but see no way to remove it on XP.

Any ideas. I really want to get this fixed. I have only used my conputer for a half hour and have hed to reboot twice to get my connection working.

Thanks,

Vish

[mccoffee]

Ok did you see those check boxes see if you could un check those if not remove the network card right click my computer, device manager and remove network card also disable that firewire 1394 while your in there. Reboot Also get ridd of that 1394 conenction that's firewire make sure it's disabled. I think i have found your fix do you own a sound blaster audigy.


If yes goto my computer control panel, add/remove programs the auidgy comes with 1394 firewall networking software i forgot the name of it see if you see anything with 1394 and remove it. .

[Vish32608]

Mccoffee,

I uninstalled the ethernet card and disabled the firewire. I rebooted the system and it automatically reinstalled the ethernet and the internet connection was active. I tried using sgoptimizer, but MTU still stuck. I also went into downloads section, and downloading everything that would speed up the connection and increase the MTU without success.

My soundcard and modem are built onto my motherboard. I have a Aopen AX4GE MAX. w/ details below.

CPU Intel Pentium 4 CPU
Socket 478
533MHz
Chipset Intel 845GE
Intel ICH4
Super I/O Winbond (83627HF)
Clock Gen. ICS
Max Overclocking : 992Mhz
Main Memory Support DDR333 [PC2700] (*note)
DDR DIMM x 3
DIMM Type : 8/16/32/64/128/256/512MB & 1GB
Max Memory : 2GB
Graphics Integrated VGA Engine in chipset
4X AGP slot
Support ADD card
IDE Integrated ATA100 Controller
Promise ATA133 and Serial ATA Control Chip
Max Disk : 144,000,000GB [by 48 bits LBA Spec.]
LAN Realtek 10/100Mbps PCI LAN Chip
Integrated Realtek PHY
Sound Realtek AC'97 CODEC on-board
5.1 Channel

http://www.aopen.com/products/mb/AX4GEMax.htm

What can I do to stop my connection from dropping. Do you think there is a problem with my computer or the service provider.

[mccoffee]

It could be isp or the computer i say call isp maybe they know a trick i don't

[Vish32608]

Thanks for all of your help first off

My ISP provider is useless and just says that their lines are fine.

In terestingly, I just saw this on my modem log at http://192.168.100.1/. What do you think of it???

There are a couple of critical problems as you see below.. Does that mean it is an ISP problem??

2003-10-15 01:08:43 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out
2003-10-14 22:17:13 notice Interface index:4 LinkUp
2003-10-14 22:17:13 notice Interface index:3 LinkUp
2003-10-14 22:17:13 notice Interface index:2 LinkUp
2003-10-14 22:17:13 information Cable Modem Status set to Registration Complete
2003-10-14 22:17:13 information Received REG-RSP from CMTS
2003-10-14 22:17:13 information Sending Registration Request
2003-10-14 22:17:13 information Processing Configuration File
2003-10-14 20:41:40 information DHCP: IP complete
2003-10-14 20:41:39 debug DHCP_coldstart() successfully
2003-10-14 20:41:38 information Got a map with the new UCD change count, and changed upstream parms
2003-10-14 20:41:38 information Beginning ranging process. Initial Power=43.00 dBmV
2003-10-14 20:41:33 information Sync recovery loop is locked
2003-10-14 20:41:30 information Scan Downstream Frequency...
2003-10-14 18:41:29 notice Interface index:4 LinkUp
2003-10-14 18:41:29 notice Interface index:3 LinkUp
2003-10-14 18:41:29 notice Interface index:2 LinkUp
2003-10-14 18:41:29 information Cable Modem Status set to Registration Complete
2003-10-14 18:41:29 information Received REG-RSP from CMTS
2003-10-14 18:41:29 information Sending Registration Request
2003-10-14 18:41:29 information Processing Configuration File
2003-10-14 18:27:35 information DHCP: IP complete
2003-10-14 18:27:34 debug DHCP_coldstart() successfully
2003-10-14 18:27:33 information tream parmsith the new UCD change count, and changed upstream parms
2003-10-14 18:27:33 information Beginning ranging process. Initial Power=43.00 dBmV
2003-10-14 18:27:28 information Sync recovery loop is locked
2003-10-14 18:27:25 information Scan Downstream Frequency...
2003-10-14 16:44:07 error ToD request sent - No Response received
2003-10-14 16:22:19 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out
2003-10-14 14:43:59 error ToD request sent - No Response received
2003-10-14 12:43:51 error ToD request sent - No Response received
2003-10-14 10:43:43 error ToD request sent - No Response received
2003-10-14 08:43:35 error ToD request sent - No Response received
2003-10-13 22:43:27 notice Interface index:4 LinkUp
2003-10-13 22:43:27 notice Interface index:3 LinkUp
2003-10-13 22:43:27 notice Interface index:2 LinkUp
2003-10-13 22:43:27 information Cable Modem Status set to Registration Complete
2003-10-13 22:43:27 information Received REG-RSP from CMTS
2003-10-13 22:43:27 information Sending Registration Request
2003-10-13 22:43:27 information Processing Configuration File
2003-10-13 20:59:33 information DHCP: IP complete
2003-10-13 20:59:32 debug DHCP_coldstart() successfully
2003-10-13 20:59:30 information Got a map with the new UCD change count, and changed upstream parms
2003-10-13 20:59:30 information Beginning ranging process. Initial Power=43.00 dBmV
2003-10-13 20:59:26 information Sync recovery loop is locked
2003-10-13 20:59:23 information Scan Downstream Frequency...
2003-10-13 20:59:23 notice Interface index:4 LinkUp
2003-10-13 20:59:23 notice Interface index:3 LinkUp
2003-10-13 20:59:23 notice Interface index:2 LinkUp
2003-10-13 20:59:23 information Cable Modem Status set to Registration Complete

[mccoffee]

that time out is weird do me a favor did you try switching network cable?? take this test if you see a bunch of colors other then green it's one isps end

http://www.pcpitstop.com/internet/tracert.asp

[Vish32608]

Mccoffee,

I tried the test and it was all green. Interestingly, I checked the drivers for my LAN card and there were updated drivers on the Realtek website. Since yest my connection has not dropped. That is a big improvement. My connection continues to be very slow though, but that may be because of my poor quality ISP.

I got a call from bellsouth today stating that in December they will be begginning dsl access in my area!! Does that mean other providers will too or just bellsouth?? What would be the best approach on who to choose.

Thanks for all of your help,

--Vish

[mccoffee]

it's just bellsouth I would switch i'll tell you why if you are sharring cable with in the building. Sounds like you live in a populated area dsl isn't shared like cable. Just make sure you have good clean wirring in the building b4 switching.