I ran the Verizon network diagnostic (working to improve internet performance). I was wireless connected and the report is below. The tool recommends increasing the receiver buffer.
Does anyone know if this is something I do on my side? I checked the router and network card settings and couldnt find any options for this. Any help appreciated...
Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done SendBufferSize set to  running 10s outbound test (client to server) . . . . . 22.36Mb/s running 10s inbound test (server to client) . . . . . . 26.74Mb/s
------ Client System Details ------ OS data: Name = Windows 7, Architecture = x86, Version = 6.1 Java data: Vendor = Oracle Corporation, Version = 1.7.0_17
------ Web100 Detailed Analysis ------ Client Receive Window detected at 261340 bytes. 100 Mbps FastEthernet 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 = 74.47 msec; the Packet size = 1460 Bytes; and No packet loss - but packets arrived out-of-order 0.83% of the time This connection is receiver limited 19.27% of the time. Increasing the the client's receive buffer (255.0 KB) will improve performance This connection is sender limited 79.36% of the time. This connection is network limited 1.35% 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 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
If you're on Windows 7 and you're using a Wireless G connection you're likely being held back by the network connection rather than the system receive window. See if that message disappears during or after two runs while on a Wired connection to the router. Windows 7 scales the receive window based on the link capacity and latency.
If you pay for 25/25 FiOS, then boosting the receive window will help with higher latency situations. Just keep in mind Windows should automatically scale the window as a download progresses.