Slow Speeds in VA Beach
kes601
Enthusiast - Level 3

Last week or so I am seeing horrible download speeds.  For example, an iTunes movie that used to download in 10 or 15 minutes now takes 2 or 3 hours.  I've run some speedtests and have some interesting results.

Using speedtest.net, areas close to me -- D.C., Atlanta, NY, etc. are very slow -- 8-12 Mbps if I am lucky, whereas I can run a speedtest to Dallas or L.A. and get my full 35 Mbps.

Using Verizon's Speedtest, regardless of location maxes out ant 8 Mbps.  I've tried multipe machines, both wired and wireless.

I am in Virignia Beach.

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Re: Slow Speeds in VA Beach
kes601
Enthusiast - Level 3

Just as an update, this was fixed sometime yesterday evening.  I don't know what was done to fix it, but it was not at my house.

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Re: Slow Speeds in VA Beach
kes601
Enthusiast - Level 3

I ran a couple speedtests at the request of a support person over on DSLReports.

Here are the results -- please not the half duplex mode under the Web100 section for the Virginia speedtest.  When I ran the test here I only got 5Mbps down.  On the Arkansas speedtest it shows as full duplex and I got 41Mbps.

Tells me something is wrong "on the network", not at my house.

Server says [74.98.188.190] but Client says [192.168.1.15]

Virginia:
Analysis information:

Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
SendBufferSize set to [131768]
running 10s outbound test (client to server) . . . . . 29.81Mb/s
running 10s inbound test (server to client) . . . . . . 5.30Mb/s

------ Client System Details ------
OS data: Name = Mac OS X, Architecture = x86_64, Version = 10.7.1
Java data: Vendor = Apple Inc., Version = 1.6.0_26

------ Web100 Detailed Analysis ------
Client Receive Window detected at 359104 bytes.
45 Mbps T3/DS3 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 = 24.41 msec; the Packet size = 1448 Bytes; and
There were 65 packets retransmitted, 1069 duplicate acks received, and 1098 SACK blocks received
The connection was idle 0 seconds (0%) of the time
This connection is sender limited 45.68% of the time.
This connection is network limited 54.32% of the time.

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 [74.98.188.190] but Client says [192.168.1.15]

Arkansas:
Analysis information:

Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
SendBufferSize set to [131768]
running 10s outbound test (client to server) . . . . . 14.87Mb/s
running 10s inbound test (server to client) . . . . . . 41.10Mb/s

------ Client System Details ------
OS data: Name = Mac OS X, Architecture = x86_64, Version = 10.7.1
Java data: Vendor = Apple Inc., Version = 1.6.0_26

------ Web100 Detailed Analysis ------
Client Receive Window detected at 524280 bytes.
45 Mbps T3/DS3 link found.
Link set to Full Duplex mode
No network congestion discovered.
Good network cable(s) found
Normal duplex operation found.

Web100 reports the Round trip time = 95.59 msec; the Packet size = 1448 Bytes; and
No packet loss was observed.
This connection is receiver limited 9.77% of the time.
This connection is sender limited 88.27% of the time.
This connection is network limited 1.96% of the time.

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

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Re: Slow Speeds in VA Beach
kes601
Enthusiast - Level 3

Just as an update, this was fixed sometime yesterday evening.  I don't know what was done to fix it, but it was not at my house.

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Re: Slow Speeds in VA Beach
smith6612
Community Leader
Community Leader

Glad to hear that 🙂

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