Very slow download speed with intermittent halts
johnmel1
Newbie

Need some help.

I run Apple os/x latest version and have since yesterday begun to experience constant very slow download speeds.

I have rebooted the router and I have reset it. I have tested with wireless and wired into router. No real change.

The results are below and are pretty consistent no matter when or with what computer I test it with.

This is very frustrating and I would like to know if anyone has experienced this and if there is anything I can do before calling for service.

Thank you in advance.

Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
SendBufferSize set to [131768]
running 10s outbound test (client to server) . . . . . 5.44Mb/s
running 10s inbound test (server to client) . . . . . . 1.94Mb/s

------ Client System Details ------
OS data: Name = Mac OS X, Architecture = x86_64, Version = 10.8.2
Java data: Vendor = Apple Inc., Version = 1.6.0_37

------ Web100 Detailed Analysis ------
Client Receive Window detected at 359104 bytes.
10 Mbps Ethernet 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 = 22.89 msec; the Packet size = 1448 Bytes; and
There were 159 packets retransmitted, 288 duplicate acks received, and 394 SACK blocks received
The connection stalled 9 times due to packet loss
The connection was idle 2.01 seconds (16.75%) of the time
This connection is sender limited 35.49% of the time.
This connection is network limited 64.51% 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: ON
RFC 1323 Window Scaling: ON
Information: Network Middlebox is modifying MSS variable
Server IP addresses are preserved End-to-End
Information: Network Address Translation (NAT) box is modifying the Client's IP address
Server says [71.100.xxx.xxx] but Client says [192.168.1.9]

0 Likes
Re: Very slow download speed with intermittent halts
ShawnWCummings1
Enthusiast - Level 3

Wired - correct?

Speed/duplex hard set or auto-negotiated?

0 Likes
Re: Very slow download speed with intermittent halts
maddhacker24
Newbie

I have been having the same issue for the last few days!

0 Likes
Re: Very slow download speed with intermittent halts
johnmel1
Newbie

Both wired or wireless.

auto - negotiate 

Thank you.

0 Likes
Re: Very slow download speed with intermittent halts
gilljk1
Newbie

Having the same issue since Sunday 1-6-13

0 Likes
Re: Very slow download speed with intermittent halts
maddhacker24
Newbie

Still happening here as well. Im in Mass

0 Likes