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Slow internet speeds when connected through router?


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WEB100 Enabled Statistics:

Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done

checking for firewalls . . . . . . . . . . . . . . . . . . .  Done

running 10s outbound test (client-to-server [C2S]) . . . . . 77.0kb/s

running 10s inbound test (server-to-client [s2C]) . . . . . . 331.84kb/s

------  Client System Details  ------

OS data: Name = Windows XP, Architecture = x86, Version = 5.1

Java data: Vendor = Sun Microsystems Inc., Version = 1.5.0_11

------  Web100 Detailed Analysis  ------

Cable modem/DSL/T1 link found.

Link set to Full Duplex mode

Information: throughput is limited by other network traffic.

Good network cable(s) found

Normal duplex operation found.

Web100 reports the Round trip time = 211.16 msec; the Packet size = 1460 Bytes; and

There were 6 packets retransmitted, 39 duplicate acks received, and 42 SACK blocks received

The connection was idle 0 seconds (0%) of the time

C2S throughput test: Packet queuing detected: 3.75%

S2C throughput test: Packet queuing detected: 11.27%

This connection is network limited 99.85% of the time.

Excessive packet loss is impacting your performance, check the auto-negotiate function on your local PC and network switch

Web100 reports TCP negotiated the optional Performance Settings to:

RFC 2018 Selective Acknowledgment: ON

RFC 896 Nagle Algorithm: ON

RFC 3168 Explicit Congestion Notification: OFF

RFC 1323 Time Stamping: OFF

RFC 1323 Window Scaling: OFF

Server 'nitro.ucsc.edu' is not behind a firewall. [Connection to the ephemeral port was successful]

Client is probably behind a firewall. [Connection to the ephemeral port failed]

Packet size is preserved End-to-End

Server IP addresses are preserved End-to-End

Information: Network Address Translation (NAT) box is modifying the Client's IP address

Server says [204.95.117.94] but Client says [192.168.1.100]

WEB100 Kernel Variables:

Client: localhost/127.0.0.1

CurMSS: 1460

X_Rcvbuf: 103424

X_Sndbuf: 103424

AckPktsIn: 174

AckPktsOut: 0

BytesRetrans: 8760

CongAvoid: 119

CongestionOverCount: 0

CongestionSignals: 5

CountRTT: 129

CurCwnd: 5840

CurRTO: 440

CurRwinRcvd: 17520

CurRwinSent: 16304

CurSsthresh: 5840

DSACKDups: 0

DataBytesIn: 0

DataBytesOut: 451140

DataPktsIn: 0

DataPktsOut: 309

DupAcksIn: 39

ECNEnabled: 0

FastRetran: 5

MaxCwnd: 14600

MaxMSS: 1460

MaxRTO: 800

MaxRTT: 490

MaxRwinRcvd: 17520

MaxRwinSent: 16304

MaxSsthresh: 5840

MinMSS: 1460

MinRTO: 410

MinRTT: 140

MinRwinRcvd: 17520

MinRwinSent: 16304

NagleEnabled: 1

OtherReductions: 1

PktsIn: 174

PktsOut: 309

PktsRetrans: 6

RcvWinScale: 2147483647

SACKEnabled: 3

SACKsRcvd: 42

SendStall: 0

SlowStart: 8

SampleRTT: 210

SmoothedRTT: 210

SndWinScale: 2147483647

SndLimTimeRwin: 0

SndLimTimeCwnd: 10695988

SndLimTimeSender: 16404

SndLimTransRwin: 0

SndLimTransCwnd: 1

SndLimTransSender: 1

SndLimBytesRwin: 0

SndLimBytesCwnd: 451140

SndLimBytesSender: 0

SubsequentTimeouts: 0

SumRTT: 27240

Timeouts: 0

TimestampsEnabled: 0

WinScaleRcvd: 2147483647

WinScaleSent: 2147483647

DupAcksOut: 0

StartTimeUsec: 972125

Duration: 10711283

c2sData: 2

c2sAck: 2

s2cData: 9

s2cAck: 2

half_duplex: 0

link: 100

congestion: 1

bad_cable: 0

mismatch: 0

spd: 0.34

bw: 0.41

loss: 0.016181230

avgrtt: 211.16

waitsec: 0.00

timesec: 10.00

order: 0.2241

rwintime: 0.0000

sendtime: 0.0015

cwndtime: 0.9985

rwin: 0.1337

swin: 0.7891

cwin: 0.1114

rttsec: 0.211163

Sndbuf: 103424

aspd: 0.00000

CWND-Limited: 113.74

The theoretical network limit is 0.41 Mbps

The NDT server has a 50.0 KByte buffer which limits the throughput to 3.73 Mbps

Your PC/Workstation has a 17.0 KByte buffer which limits the throughput to 0.63 Mbps

The network based flow control limits the throughput to 0.52 Mbps

Client Data reports link is 'T1', Client Acks report link is 'T1'

Server Data reports link is '10 Gig', Server Acks report link is 'T1'

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