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reply to batsona

Re: please interpret these Verizon Network Diagnostics NDT

Whatever was happening at Verizon it seems to have stabilized and I'm back to 50 down and 39 up. Not 75/35 but better than 2 Mbps up, for sure.

Verizon onsite tech arrived and swapped out the Actiontec router for a newer version of the same model, but that made no difference.

Warwick, RI
reply to TR888
Continued from that other topic:

If you are subscribed to 75/35 and are getting 50/39, the problem may be in your PC, maybe the ONT, maybe the wiring, maybe upstream. Not determined at this time. You had a tech out and he replaced the router. Question: what did he test and eliminate as source of problem?

Suggestion: register on DSLR site, then request a line monitor here »Verizon FiOS Line Monitors - Free

It's not clear what source your speed test results come from, or maybe I didn't read so well on one cup of coffee. What results do you get here? »my.verizon.com/services/speedtest/

When I use VZ's test site, my default server location is New York, which has been affected by storm-damaged infrastructure. There I am getting 11/25. When I choose Reston, VA server, I test at full speeds on my 50/25 connection.


Thanks for the tip about the line monitor.

I get comparable results from speedtest.verizon.com and speakeasy's test.

My concern now is that Windows Remote Desktop always freezes up after a few minutes when I "dial in" to a remote server (but no such problems when I do the same thing at work (ergo the remote server is not where the problem is).

Verizon's Web100 diagnostics always say the transmission is "sender limited" 85% of the time.

The Verizon tech said he did not have any equipment with him to test the signal on the coax line going into or coming out of the ONT; but he did say that they know that the ONT equipment I have cannot get 75Mbps down, and that they have a gazillion problem reports about low download speeds with that particular manufacturer. There's another ONT available, but to get it one must upgrade to 150Mbps service, which isn't even listed as an option on the Verizon web page when I visit.


Ellicott City, MD
·Verizon FiOS
reply to TR888
Wanna see something interesting? Bring up Task Manager and look at the stats for your NIC. Have it up on one side of the screen, and your browser on the other, so you can see results in R/T.

Run the speedtest from speedtest.speakeasy.net, and then run it from a place like testmy.net. Testmy.net [on the upload test] produces a steady outbound stream that usually equates to your provisioned speed. speedtest produces this weird saw-tooth pattern. My reccomendation is to let your NIC statistics in Task Manager tell you what your actual speed is. You'll see what I mean...


Perris, CA
·Verizon FiOS

1 edit
reply to TR888
I'm having similar problems as the OP. 75/35 package. Speed seems to fluctuate with time of day. I've also noticed increase packet loss and latency. Bypassed the router during testing and tried multiple workstations. Network cable from the ONT. I think a larger issue is at play- my problems started in Q4 2012.

::.. Internet Speed Test Result Details ..:::
Download Connection Speed:: 82550 Kbps or 82.6 Mbps
Download Speed Test Size:: 68.9 MB or 70528 kB or 72220672 bytes
Download Binary File Transfer Speed:: 10319 kB/s or 10.3 MB/s
Upload Connection Speed:: 4568 Kbps or 4.6 Mbps
Upload Speed Test Size:: 2.9 MB or 2944 kB or 3014656 bytes
Upload Binary File Transfer Speed:: 571 kB/s
Tested At:: »TestMy.net Version 13
Test Time:: 2013-04-18 22:33:41 Local Time
Location:: Perris, CA US >> Destination:: Dallas, TX US
Validation:: »testmy.net/db/tM4LYlU.kWQl9it
TiP Measurement Summary (Download):: Min 39.75 Mbps | Middle Avg 84.07 Mbps | Max 88.26 Mbps | 45% Variance
TiP Data Points:: 85.25 Mbps, 84.43 Mbps, 84.02 Mbps, 84.02 Mbps, 84.02 Mbps, 84.16 Mbps, 84.29 Mbps, 79.68 Mbps, 83.89 Mbps, 88.26 Mbps, 84.16 Mbps, 84.29 Mbps, 83.49 Mbps, 83.35 Mbps, 85.25 Mbps, 83.89 Mbps, 84.02 Mbps, 83.89 Mbps, 39.75 Mbps
More Stats:: »testmy.net/compID/159159870594
User Agent:: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31 [!]

Verizon's test:

Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
SendBufferSize set to [261360]
running 10s outbound test (client to server) . . . . . 28.87Mb/s
running 10s inbound test (server to client) . . . . . . 29.82Mb/s

------ Client System Details ------
OS data: Name = Windows 8, Architecture = x86, Version = 6.2
Java data: Vendor = Oracle Corporation, Version = 1.7.0_21

------ Web100 Detailed Analysis ------
Client Receive Window detected at 191232 bytes.
45 Mbps T3/DS3 link found.
Link set to Half Duplex mode
No network congestion discovered.
Good network cable(s) found
Normal duplex operation found.

Web100 reports the Round trip time = 11.84 msec; the Packet size = 1460 Bytes; and
There were 638 packets retransmitted, 2604 duplicate acks received, and 3133 SACK blocks received
The connection stalled 3 times due to packet loss
The connection was idle 0.65 seconds (5.90%) of the time
This connection is receiver limited 6.59% of the time.
This connection is sender limited 64.97% of the time.
This connection is network limited 28.43% 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: OFF
RFC 1323 Window Scaling: ON
Packet size is preserved End-to-End
Server IP addresses are preserved End-to-End

Speedtest.net to Los Angeles

Speedtest.net to New York

Speedtest.net to somewhere in FL

Speedtest.net to Seattle

Speedtest.net to D.C

Speedtest.net to Houston

Warwick, RI
reply to birdfeedr
said by birdfeedr:

When I use VZ's test site, my default server location is New York, which has been affected by storm-damaged infrastructure. There I am getting 11/25. When I choose Reston, VA server, I test at full speeds on my 50/25 connection.

Interesting. When I posted the other day, I got the results I said. When I tested New York location again shortly after, it was normal.

So I did the same this a.m. early. 11/25 from TestMy.Net in Texas and again from Washington. So I ran VZ test from New York and got 11/25, then 50/25 from VZ in VA, then 50/25 from VZ New York. All VZ tests within 1 minute.

Poor speedtest response followed by normal speedtest indicates something woke up and decided to work. Hmmm.

Warrants continued investigation.