3Mb Cable Internet and Dlink Router

I have a 3Mb cable internet connection through a Motorola SB5100 modem.
I also have a DLINK 604 Router through which I share my connection.
The problem I am having is that my bandwidth does not reach above 1.5Mb
and most the time 800-1000K when I go through the router. When I plug
the cable modem directly into a PC, I get the full 3Mb connection. Is
this just because it is a cheap router and won't support anymore
bandwidth?

From: "Steve" <(E-Mail Removed)>

| I have a 3Mb cable internet connection through a Motorola SB5100 modem.
| I also have a DLINK 604 Router through which I share my connection.
| The problem I am having is that my bandwidth does not reach above 1.5Mb
| and most the time 800-1000K when I go through the router. When I plug
| the cable modem directly into a PC, I get the full 3Mb connection. Is
| this just because it is a cheap router and won't support anymore
| bandwidth?

You could have a Duplexing problem. Manually set the the computer to 100Mb/s half-duplex.

--
Dave
http://www.claymania.com/removal-trojan-adware.html
http://www.ik-cs.com/got-a-virus.htm

David H. Lipman wrote:
> From: "Steve" <(E-Mail Removed)>
>
>> I have a 3Mb cable internet connection through a Motorola SB5100
>> modem. I also have a DLINK 604 Router through which I share my
>> connection. The problem I am having is that my bandwidth does not
>> reach above 1.5Mb and most the time 800-1000K when I go through
>> the router. When I plug the cable modem directly into a PC, I get
>> the full 3Mb connection. Is this just because it is a cheap
>> router and won't support anymore bandwidth?
>
> You could have a Duplexing problem. Manually set the the computer
> to 100Mb/s half-duplex.

Dave

Is this the setting that should be used for Verizon DSL? My adapter has
a whole bunch of settings, is there a place that will tell me what the
optimal settings might be?

Thanks

--

Travis in Shoreline Washington

From: "Travis" <(E-Mail Removed)>


|
| Dave
|
| Is this the setting that should be used for Verizon DSL? My adapter has
| a whole bunch of settings, is there a place that will tell me what the
| optimal settings might be?
|
| Thanks
|
| --
|
| Travis in Shoreline Washington

The "optimal" setting will be based upon one you are connected to.
If a PC is connected to a Ethernet hub, the rules of Carrier Sense Multiple Access/Collision
Detection (CSMA/CD) are in effect and the the connection will be half duplex. If a PC is
connected to a Ethernet switch then you can effectively double the bandwidth by turning off
the Collision Detection in CSMA and the PC can send a packet at the same time as receiving a
packet. That's Full-Duplex operation.

Now considering Steve's post. If the PC's NIC is set to Full-Duplex when the DLink 604
can't handle the the sending and receiving packets at the same time, it will cripple his
communication. Usually with an Ethernet switch they use N-Way negotiation to get the right
setting. PCs don't do N-Way negotiation so you set the NIC of the PC to force its setting
and the Ethernet switch will setup accordingly. I don't know the DLink 604 if it has a 4
port E-switch or not but its a good place to start.

With my PCs connected to my Linksys BEFSR81, I know that it is a 8-port E-switch so I set
the computers to 100Mb/s @ Full Duplex.


--
Dave
http://www.claymania.com/removal-trojan-adware.html
http://www.ik-cs.com/got-a-virus.htm

David H. Lipman wrote:
> From: "Travis" <(E-Mail Removed)>
>
>
>>
>> Dave
>>
>> Is this the setting that should be used for Verizon DSL? My
>> adapter has a whole bunch of settings, is there a place that will
>> tell me what the optimal settings might be?
>>
>> Thanks
>>
>> --
>>
>> Travis in Shoreline Washington
>
> The "optimal" setting will be based upon one you are connected to.
> If a PC is connected to a Ethernet hub, the rules of Carrier Sense
> Multiple Access/Collision Detection (CSMA/CD) are in effect and the
> the connection will be half duplex. If a PC is connected to a
> Ethernet switch then you can effectively double the bandwidth by
> turning off the Collision Detection in CSMA and the PC can send a
> packet at the same time as receiving a packet. That's Full-Duplex
> operation.
>
> Now considering Steve's post. If the PC's NIC is set to
> Full-Duplex when the DLink 604 can't handle the the sending and
> receiving packets at the same time, it will cripple his
> communication. Usually with an Ethernet switch they use N-Way
> negotiation to get the right setting. PCs don't do N-Way
> negotiation so you set the NIC of the PC to force its setting and
> the Ethernet switch will setup accordingly. I don't know the DLink
> 604 if it has a 4 port E-switch or not but its a good place to
> start.
>
> With my PCs connected to my Linksys BEFSR81, I know that it is a
> 8-port E-switch so I set the computers to 100Mb/s @ Full Duplex.

These are my on board NIC's (Intel PRO/100 VE Network Connection)
settings:

_Property_
_Value_
Adaptive Inter-Frame Spacing
1
Adaptive Link Response
Off
Adaptive Technology
On
Adaptive Transmit Threshold
200
Coalesce Buffers
8
Enable PME
No Action
Flow Control Settings
Generate and Respond
Link Speed & Duplex
100Mbps/Full Duplex
Log Link State Event
Enabled
Offload TCP Segmentation
Enabled
PCI Bus Efficiency
Disabled
QoS Packet Tagging
Disabled
Receive Descriptors
48
Retransmit Inter-Frame Spacing
10
Transmit Descriptors
16

Do I need to change any of them?

Thanks

--

Travis in Shoreline Washington

From: "Travis" <(E-Mail Removed)>


|
| These are my on board NIC's (Intel PRO/100 VE Network Connection)
| settings:
|
| _Property_
| _Value_
| Adaptive Inter-Frame Spacing
| 1
| Adaptive Link Response
| Off
| Adaptive Technology
| On
| Adaptive Transmit Threshold
| 200
| Coalesce Buffers
| 8
| Enable PME
| No Action
| Flow Control Settings
| Generate and Respond
| Link Speed & Duplex
| 100Mbps/Full Duplex
| Log Link State Event
| Enabled
| Offload TCP Segmentation
| Enabled
| PCI Bus Efficiency
| Disabled
| QoS Packet Tagging
| Disabled
| Receive Descriptors
| 48
| Retransmit Inter-Frame Spacing
| 10
| Transmit Descriptors
| 16
|
| Do I need to change any of them?
|
| Thanks
|
| --
|
| Travis in Shoreline Washington

Well there 'ya go -- 100Mbps/Full Duplex


--
Dave
http://www.claymania.com/removal-trojan-adware.html
http://www.ik-cs.com/got-a-virus.htm

David H. Lipman wrote:
> From: "Travis" <(E-Mail Removed)>
>
>
>>
>> These are my on board NIC's (Intel PRO/100 VE Network Connection)
>> settings:
>>
>> _Property_
>> _Value_
>> Adaptive Inter-Frame Spacing
>> 1
>> Adaptive Link Response
>> Off
>> Adaptive Technology
>> On
>> Adaptive Transmit Threshold
>> 200
>> Coalesce Buffers
>> 8
>> Enable PME
>> No Action
>> Flow Control Settings
>> Generate and Respond
>> Link Speed & Duplex
>> 100Mbps/Full Duplex
>> Log Link State Event
>> Enabled
>> Offload TCP Segmentation
>> Enabled
>> PCI Bus Efficiency
>> Disabled
>> QoS Packet Tagging
>> Disabled
>> Receive Descriptors
>> 48
>> Retransmit Inter-Frame Spacing
>> 10
>> Transmit Descriptors
>> 16
>>
>> Do I need to change any of them?
>>
>> Thanks
>>
>> --
>>
>> Travis in Shoreline Washington
>
> Well there 'ya go -- 100Mbps/Full Duplex

What about the other settings? I don't know what happened to the
columns in my post.

Thanks

--

Travis in Shoreline Washington

From: "Travis" <(E-Mail Removed)>

| David H. Lipman wrote:
>> From: "Travis" <(E-Mail Removed)>
>>
>>> These are my on board NIC's (Intel PRO/100 VE Network Connection)
>>> settings:
>>>
>>> _Property_
>>> _Value_
>>> Adaptive Inter-Frame Spacing
>>> 1
>>> Adaptive Link Response
>>> Off
>>> Adaptive Technology
>>> On
>>> Adaptive Transmit Threshold
>>> 200
>>> Coalesce Buffers
>>> 8
>>> Enable PME
>>> No Action
>>> Flow Control Settings
>>> Generate and Respond
>>> Link Speed & Duplex
>>> 100Mbps/Full Duplex
>>> Log Link State Event
>>> Enabled
>>> Offload TCP Segmentation
>>> Enabled
>>> PCI Bus Efficiency
>>> Disabled
>>> QoS Packet Tagging
>>> Disabled
>>> Receive Descriptors
>>> 48
>>> Retransmit Inter-Frame Spacing
>>> 10
>>> Transmit Descriptors
>>> 16
>>>
>>> Do I need to change any of them?
>>>
>>> Thanks
>>>
>>> --
>>>
>>> Travis in Shoreline Washington
>>
>> Well there 'ya go -- 100Mbps/Full Duplex
|
| What about the other settings? I don't know what happened to the
| columns in my post.
|
| Thanks
|
| --
|
| Travis in Shoreline Washington

Coalesce Buffers = 16 ~ 32 (will use more RAM)
PCI Bus Efficiency = Enabled

The rest can be left alone.

--
Dave
http://www.claymania.com/removal-trojan-adware.html
http://www.ik-cs.com/got-a-virus.htm

David H. Lipman wrote:
> From: "Travis" <(E-Mail Removed)>
>
>> David H. Lipman wrote:
>>> From: "Travis" <(E-Mail Removed)>
>>>
>>>> These are my on board NIC's (Intel PRO/100 VE Network Connection)
>>>> settings:
>>>>
>>>> _Property_
>>>> _Value_
>>>> Adaptive Inter-Frame Spacing
>>>> 1
>>>> Adaptive Link Response
>>>> Off
>>>> Adaptive Technology
>>>> On
>>>> Adaptive Transmit Threshold
>>>> 200
>>>> Coalesce Buffers
>>>> 8
>>>> Enable PME
>>>> No Action
>>>> Flow Control Settings
>>>> Generate and Respond
>>>> Link Speed & Duplex
>>>> 100Mbps/Full Duplex
>>>> Log Link State Event
>>>> Enabled
>>>> Offload TCP Segmentation
>>>> Enabled
>>>> PCI Bus Efficiency
>>>> Disabled
>>>> QoS Packet Tagging
>>>> Disabled
>>>> Receive Descriptors
>>>> 48
>>>> Retransmit Inter-Frame Spacing
>>>> 10
>>>> Transmit Descriptors
>>>> 16
>>>>
>>>> Do I need to change any of them?
>>>>
>>>> Thanks
>>>>
>>>> --
>>>>
>>>> Travis in Shoreline Washington
>>>
>>> Well there 'ya go -- 100Mbps/Full Duplex
>>
>> What about the other settings? I don't know what happened to the
>> columns in my post.
>>
>> Thanks
>>
>> --
>>
>> Travis in Shoreline Washington
>
> Coalesce Buffers = 16 ~ 32 (will use more RAM)
> PCI Bus Efficiency = Enabled
>
> The rest can be left alone.

Thanks Dave.

--

Travis in Shoreline Washington