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Slow DSL Connection Second Time This Month

My DSL connection has slowed to 0.847 Mbps down, 0.419 up.  I had a similar slowdown earlier this month, which was corrected by email conversation with tech support. reports:

Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
SendBufferSize set to [66240]
running 10s outbound test (client to server) . . . . . 419.01Kb/s
running 10s inbound test (server to client) . . . . . . 847.08kb/s

------ Client System Details ------
OS data: Name = Mac OS X, Architecture = x86_64, Version = 10.6.8
Java data: Vendor = Apple Inc., Version = 1.6.0_33

------ Web100 Detailed Analysis ------
Client Receive Window detected at 524280 bytes.
Cable modem/DSL/T1 link found.
Link set to Half 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 = 923.79 msec; the Packet size = 1440 Bytes; and
There were 247 packets retransmitted, 158 duplicate acks received, and 307 SACK blocks received
The connection stalled 1 times due to packet loss
The connection was idle 2.15 seconds (17.91%) of the time
This connection is sender limited 27.27% of the time.
This connection is network limited 72.72% of the time.

The DSL modem is a Westel 6100.  The account is for High Speed Internet Extra.

Is there any way (1) this can be fixed and (2) it won't happen again? 

Re: Slow DSL Connection Second Time This Month
Super User
Super User

#1 Visit and post up the Traceroute the page shows, if you wish. Be aware that the final hop (bottom-most line of the trace)  might contain a hop with your IP address in it. Remove that line. What I'm looking for is a line that mentions "ERX" in it's name towards the end. If for some reason the trace does not complete (two lines full of Stars), keep the trace route intact.

#2 Can you provide the Transceiver Statistics from your modem?

For your modem, this means.

Visit for me and do the following:

1: If you see a Blue and White Westell page, mouse over Troubleshooting, go to DSL, and choose Transceiver Statistics. Copy/Paste the information on that page.

2: Go to System Monitoring > Advanced Monitors > Transceiver Statistics. Copy/Paste the information on that page.

3: Try visiting which is a direct link to the Stats on older modems.

If you need a Username and Password, try the following:





admin/Serial Number.

By Serial Number, I don't mean type in the words Serial Number. I mean find and type in the serial number found on the bottom of this router.