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Excessive Packet Loss 1.87 Mb/s Down 39.63 Mb/s Up - 90.19% limited?

Posts: 1
Registered: ‎08-18-2013

Excessive Packet Loss 1.87 Mb/s Down 39.63 Mb/s Up - 90.19% limited?

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Hello everyone, my name is Sherri.  I became a Fios Internet 50/25 subscriber 4 days ago.  For the first 24 hours was giving me as much as a 60/30 speed results.  The next morning I noticed web pages taking abnormally long to load (even, so I decided to check my speed again and am now getting as low as 1MB/s download wired or wirelessly.  My upload remains unaffected but browsing can get so slow it's almost unusable.  Any large downloads I try end up failing (i.e. cyanogenmod nightlies).  This has been going on for the past 3 days on all of my devices (android, PC, Macbook).


How can I check if this is a fixable problem on my end or if it's a problem with Fios in my area that I just need to wait out?  I called tech support and they just want to send me a new router, but if it was the router wouldn't my upload be affected as well?


Network diagnostic tool:


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

SendBufferSize set to [131768]

running 10s outbound test (client to server) . . . . . 39.63Mb/s

running 10s inbound test (server to client) . . . . . . 1.87Mb/s


------ Client System Details ------

OS data: Name = Mac OS X, Architecture = x86_64, Version = 10.8.4

Java data: Vendor = Oracle Corporation, Version = 1.7.0_25


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

Client Receive Window detected at 131760 bytes.

100 Mbps FastEthernet 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 = 11.77 msec; the Packet size = 1448 Bytes; and 

There were 169 packets retransmitted, 493 duplicate acks received, and 554 SACK blocks received

The connection stalled 17 times due to packet loss

The connection was idle 3.65 seconds (30.41%) of the time

This connection is sender limited 9.81% of the time.

This connection is network limited 90.19% 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

Client IP address not found. For IE users, modify the Java parameters

click Tools - Internet Options - Security - Custom Level, scroll down to

Microsoft VM - Java permissions and click Custom, click Java Custom Settings

Edit Permissions - Access to all Network Addresses, click Eanble and save changes



Any help would be appreciated!  Aside from the internet, I'm really happy with Fios TV Smiley Happy.  The customer service rep credited me the internet cost for this month because of my issues and for that I am very thankful!  but... I would still like to get this fixed as soon as possible.


Things I've tried:

resetting ONT

Forced firmware upgrade and router reset

Verizon reset my service and gave me a new IP


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