trogers

How far are you from your CO? Do the Analyzer test and post results: https://www.speedguide.net/analyzer.php

What are your subscribed speeds? Do the TCP Analyzer test and post results: https://www.speedguide.net/analyzer.php

If you have problem connecting, it could be the duplex mismatch. Reset your adapter to "auto-sensing", power down your modem and reboot your comp and see you can connect.

I suggest you notify your ISP and get them to do a line test to your IP Address. If confirmed that there is a loose connection, they will send a tech to physically check the lines and connections.

What are your subscribed speeds? You have excessive packet losses. Do a reverse traceroute back to your own IP address from this link: htto://www.dnsstuff.com/ I believe the pings would travel through 40 hops and still not reach you. This means a cable connection point may have been loosen. Possibly the copper wire shrank too much in the cold and contact x-sectional area reduced. Check and see if it is the cable box just outside your house.

Your Round trip time = 797.23 msec. Usually RTT < 300 ms from computers of overseas users. High round trip time usually points to poor line quality or electromagnetic interference on your signal cables or modem/router. Make sure modem and router are place a few feet apart. Check to see ensure other electrical devices are not placed near to them (eg. subwoofer, speakers, cordless phone, fax...etc). If using wireless, interference in signal transmission to router can be a possibility.

This is the best buffer value you can increase to. Any higher, you will start to have excess packet losses. On your side, make sure you keep your router and modem a few feet apart. Electromagnetic interference from electrical devices (sound speakers, cordless phone, etc...) can increase RTT values and slow down your speed.

Your RTT value to the US is almost 400 ms. You will not be able to achieve 90% as those in the US with RTT less than 200 ms. "estimate = 27.22 based on packet size = 11Kbits, RTT = 397.94msec, and loss = 1.0E-6 The theoretical network limit is 27.22 Mbps The NDT server has a 101.0 KByte buffer which limits the throughput to 1.98 Mbps Your PC/Workstation has a 62.0 KByte buffer which limits the throughput to 1.22 Mbps The network based flow control limits the throughput to 1.25 Mbps" This ccs file adjusts your PC's buffer from 62 Kbytes to 124 Kbytes to raise your throughput limit from 1.22 Mbps to a higher value. You can do the nitro test again to check your throughput limit.

Yes. This means your ISP has a web proxy server that alters your MTU values as the signals pass through it. Here is a ccs file for MTU 1492 Download the Cablenut Adjuster from www.cablenut.com and open the ccs file. Then Click 'Save to Registry', exit and reboot comp. Test speed again and post..

Looks like we have to go by the old-fashion way. Call out your DOS black screen and after C: use this command ping -f -l (max value) www.testmy.net Where -l is minus small L and max value is your largest anticipated MTU value minus 28. Say you start with assumed MTU value of 1500, max value is 1500-28 = 1472 If you get a message "Packets need to be fragmented..." Then 1500 is not your largest MTU. Go on pinging with a max value less 1 until you get a proper result like "Reply from XX.XXX.XX.XXX: bytes= ______ time = _____ ms TTL= ___ The bytes value shown + 28 = your largest MTU.

Look at your adapters properties in my network places see if there is an mtu option in there. if you are using a pppoe connection using software to connect look at the pppoe properties of that connection sometimes there is an mtu setting there as well.

We first have to try and adjust your MTU higher. Go to this link and download the TCP Optimizer: https://www.speedguide.net/downloads.php Open the TCP Optimizer and do the following: General Settings tab: Custom settings - check Modify All Network Adapters - check network adapter selection - your NIC MTU 1500 TTL - 64 TCP Receive Window - blank MTU Discovery - Yes Black Hole Detect - No Selective Acks - Yes Max Duplicate ACKs - 2 TCP 1323 Options: Windows Scaling - uncheck Timestamps - uncheck Advanced Settings tab: Max Connections per Server - 10 Max Connections per 1.0 Server - 20 LocalPriority - 5 Host Priority - 6 DNSPriority - 7 NetbtPriority - 8 Lan Browsing speedup - optimized QoS: NonBestEffortLimit - 0 ToS: DisableUserTOSSetting - 0 ToS: DefaultTOSValue - 240 MaxNegativeCacheTtl - 0 NetFailureCacheTime - 0 NegativeSOACache Time - 0 LAN Request Buffer Size - 32768 Then select "Apply Changes" and reboot to take effect Then retest with https://www.speedguide.net/analyzer.php to confirm your MTU value

Try testing on this site: http://bandwidthplace.com/speedtest/

It's a long way to the US speedtest site. Is there any sites in down under to test?

Do this network diagnostic test and post all results including the 'Statistics' and 'More Details' buttons below the test box: http://nitro.ucsc.edu/

Go to this link and download the TCP Optimizer: https://www.speedguide.net/downloads.php Open the TCP Optimizer and do the following: General Settings tab: Custom settings - check Modify All Network Adapters - check network adapter selection - your NIC MTU 1500 TTL - 64 TCP Receive Window -128480 MTU Discovery - Yes Black Hole Detect - No Selective Acks - Yes Max Duplicate ACKs - 2 TCP 1323 Options: Windows Scaling - check Timestamps - uncheck Advanced Settings tab: Max Connections per Server - 10 Max Connections per 1.0 Server - 20 LocalPriority - 5 Host Priority - 6 DNSPriority - 7 NetbtPriority - 8 Lan Browsing speedup - optimized QoS: NonBestEffortLimit - 0 ToS: DisableUserTOSSetting - 0 ToS: DefaultTOSValue - 240 MaxNegativeCacheTtl - 0 NetFailureCacheTime - 0 NegativeSOACache Time - 0 LAN Request Buffer Size - 32768 Then select "Apply Changes" and reboot to take effect

Your RWIN is set to 124256 which is your MSS 1412 x 88. This is the optimum tweak setting for your bandwidth 6000 Kbps with latency range not more than 150 ms. Here is a ccs file for latency range up to 300 ms. Download Cablenut Adjuster program from www.cablenut.com and open the ccs file. Click 'Save to Registry', exit and reboot comp to take effect.

This is the value I just received using IP Address (201.3.194.254) from your tracert: 1 0 0 0 0.4 ms 66.36.240.2 AS14361 HOPONE-DCA c-vl102-d1.acc.dca2.hopone.net. 255 US Unknown: 8331a397 2 0 0 0 0.4 ms [+0ms] 66.36.224.232 AS0 IANA-RSVD-0 gec2.core1.dca2.hopone.net. 0 miles [+0] 254 US Unknown: 85213cde 3 0 0 0 0.4 ms [+0ms] 66.36.224.233 AS0 IANA-RSVD-0 gec2.core2.dca2.hopone.net. 0 miles [+0] 254 US Unknown: 830e58ac 4 3 1 1 1.5 ms [+1ms] 66.36.224.185 AS0 IANA-RSVD-0 iar2-ge-2-0-0.washington.savvis.net. 0 miles [+0] 252 US Unix: 23:31:42.546 5 1 1 6 1.6 ms [+0ms] 206.24.226.97 AS3561 SAVVIS bcs1-loopback.washington.savvis.net. 0 miles [+0] 252 US Unix: 23:31:42.617 6 19 2 15 2.6 ms [+1ms] 204.70.192.53 AS3561 SAVVIS dcr1-so-3-0-0.atlanta.savvis.net. 0 miles [+0] 250 US Unix: 23:31:43.356 7 15 28 16 15 ms [+12ms] 204.70.192.57 AS3561 SAVVIS dcr2-so-7-2-0.atlanta.savvis.net. 0 miles [+0] 251 US Unix: 23:31:43.369 8 31 27 27 27 ms [+12ms] 208.172.99.94 AS3561 SAVVIS dpr1-so-1-1-0.miamimit.savvis.net. 0 miles [+0] 248 US Unix: 23:31:43.438 9 38 28 27 27 ms [+0ms] 208.172.97.170 AS3561 SAVVIS dpr1-so-0-1-0.miamimit.savvis.net. 0 miles [+0] 248 US Unix: 23:31:43.479 10 390 28 27 27 ms [+0ms] 208.172.103.66 AS3561 SAVVIS bpr2-as0.miamimit.savvis.net. 0 miles [+0] 246 US Unix: 23:31:43.516 11 452 376 376 376 ms [+348ms] 208.172.108.86 AS3561 SAVVIS unknown.savvis.net 0 miles [+0] 247 US Unix: 23:31:44.171 12 475 * * 475 ms [+99ms] 201.3.194.254 AS8167 LACNIC-8167 [Reached Destination]brt-l10-paemt704-vrres.t.brasiltelecom.net.br.

You can do the reverse traceroute from the US to your IP address and see the high latency (>500 ms) at the hop between USA and Brazil. Go to this link for reverse traceroute: http://www.dnsstuff.com/

Do you have any speedtest sites in your country? The gateway between Brazil and the US is rather busy. That may be the reason for your low score when testing at USA sites.

Do the tracert and post your results. click 'start' and 'run' and type "cmd" and click 'ok' A DOS black screen will appear and after c: type "tracert www.testmy.net" and press 'enter'

I believe your subscribed speed is 6000 Kbps down and your setting has been tweaked for MTU 1452. There are 2 items in the test reports that point to the cause of slowdown: Your RTT value of 778 ms is high. Usual value from overseas should not exceed 300 ms. Please do a tracert so that we may try to find where the high latency lies. Your MTU of 1452 is not optimum for DSL. Usual values are 1492 and 1480. We can try to use the TCP Optimizer to set the MTU to its highest value if this value is not a limitation imposed by your modem/router. In the latter case, adjustment has to be made by tweaking the driver of the hardware. Download the TCP Optimizer at www.speedguide.net and do the following: General Settings tab: Custom settings - check Modify All Network Adapters - check network adapter selection - your NIC MTU - 1500 TTL - 64 TCP Receive Window - blank MTU Discovery - Yes Black Hole Detect - No Selective Acks - Yes Max Duplicate ACKs - 2 TCP 1323 Options: Windows Scaling - uncheck Timestamps - uncheck Advanced Settings tab: Max Connections per Server - 10 Max Connections per 1.0 Server - 20 LocalPriority - 5 Host Priority - 6 DNSPriority - 7 NetbtPriority - 8 Lan Browsing speedup - optimized QoS: NonBestEffortLimit - 0 ToS: DisableUserTOSSetting - 0 ToS: DefaultTOSValue - 240 MaxNegativeCacheTtl - 0 NetFailureCacheTime - 0 NegativeSOACache Time - 0 LAN Request Buffer Size - 32768 Then select "Apply Changes" and reboot to take effect

Hi JKO, You can download the Cablenut Adjuster program from www.cablenut.com If you need further assistance, please post a new thread so that we can address your request directly.

Do these 2 tests and post your results so that we have the info to help you: https://www.speedguide.net/analyzer.php http://nitro.ucsc.edu/

fireyone01, You need to download the Cablenut Adjuster from www.cablenut.com and use it to open any ccs files in this forum. It is a program that tweaks your windows registry. After opening the ccs file, click 'Save to Registry', exit and reboot comp to take effect.