ToS set to 80, TCP Analyzer says 0.

johnhc · Post by **johnhc** » Fri Jul 13, 2007 3:01 pm

I set DisableUserTOSSetting to 0 and DefaultTOSValue to 80 but TCP Analyzer reports 0. I see these values in my Registry after a reboot.
Is it possible that my ISP (Time Warner Road Runner) is clearing these values? If so, is there a work around?
My speeds are good but am curious why I don't see the ToS value I set.
I am running Win XP Pro x64 Edition and IE7(32 bit).
Thanks for any help..............John

johnhc · Post by **johnhc** » Fri Jul 13, 2007 9:07 pm

I ran a Wireshark trace of the TCP Analyzer and I can see that I am sending a x'50' (decimal 80) in my outgoing packets for ToS/DiffServ. Is TCP analyzer reporting erroneously or is somebody along the line reseting the field to zero?
Thanks.....John

trogers · Post by **trogers** » Fri Jul 13, 2007 11:17 pm

Yes, your ISP system is not recognising Diff Serv. But the coding is still present in your data packets and may still be effective further along the signal route.

My TCP Analyzer report shows 0 for ToS value but I can see differences in web page loading when I set it to 80 and 136.

johnhc · Post by **johnhc** » Sun Jul 15, 2007 3:13 pm

Thanks, trogers for your reply. It seems to me you are saying that TCP/IP ANalyzer is seeing zero for my ToS/DiffServ value but other sites are seeing 80. I don't see how this can be. One web site should see the same thing as any other - right?
Thanks.............John

Chrysalis · Post by **Chrysalis** » Mon Sep 10, 2007 10:56 am

I think your isp is changing to 0, I had a similiar situation and someone told me not to worry it is actually working then my isp admitted they were changing the TOs so I have now changed isps and is fine.

johnhc · Post by **johnhc** » Mon Sep 10, 2007 2:54 pm

Chrysalis,
Thanks for your reply.
Unfortunately I do not have a choice of high speed ISPs here. Road Runner is the only cable provider in my area and DSL is not available at all. I am getting good speeds after tweaking (>90% advertised) but suspect I might see some 'snappiness' improvement if the ToS/DiffServ values would make it through my ISP. It is not a problem I believe I have a chance of effecting a change with Time Warner.
Thanks again...........John