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Forum Discussion
what is orbi's tcp session timeout value?
does anybody know orbi's tcp session timeout value? my guesstimate puts it somewhere around 5 or 10 minutes.
Shotround wrote:
ive got att uverse internet dsl. i suspect the pace modem does a nat'd dmz mode. .....
Is it possible to "bridge" the pace modem so it will only pass through? What is the model of the modem?
att/pace does not offer that selection. just dmzplus which is still nat. att uverse devices pull multiple duty. i have internet only but the device also processes phone (internet phone?) should i ever get a land line again.
to anyone following: reboot your gateway (isp device) after making changes to the tcp session timeout or wait for enough sessions to timeout. then wait a day or three before declaring victory.
furry, did anyone respond to you saying they have an att uverse gateway by pace? i would love for someone to confirm changing this setting makes a difference. ill even walk them through it.
There was a couple of posters a while back that mentioned having PACE combo units. They came to the forum complainting about speeds with the Orbi. After giving them my standard feedback about combo units, one of them mentioned having problems at the modem and with it's FW. It was solved at the modem and not in the Orbi. I'll post the link I have on monday as I don't have it with me at the moment.
Shotround wrote:
to anyone following: reboot your gateway (isp device) after making changes to the tcp session timeout or wait for enough sessions to timeout. then wait a day or three before declaring victory.
furry, did anyone respond to you saying they have an att uverse gateway by pace? i would love for someone to confirm changing this setting makes a difference. ill even walk them through it.
Shotround wrote:
to anyone following: reboot your gateway (isp device) after making changes to the tcp session timeout or wait for enough sessions to timeout. then wait a day or three before declaring victory.
.......
I found out that the session timeout values can also been changed in Orbi, as follows:
root@RBR50:/# sysctl -w net.netfilter.nf_conntrack_tcp_timeout_established=7440 --This (7440) is the default value
ive changed the pace modem back to default of 86400 seconds and the orbi to match. lets see how it does...im a sucker for pain...how do i get it to read out that value to confirm it is there? nevermind...sysctl -a
Review this:
Modem FW may have broke good speeds between the modem and Orbi in router mode:
https://community.netgear.com/t5/Orbi/RBK50-Speed-Throttling-Wired-and-Wireless/td-p/1673291/jump-to/first-unread-message
Shotround wrote:
to anyone following: reboot your gateway (isp device) after making changes to the tcp session timeout or wait for enough sessions to timeout. then wait a day or three before declaring victory.
furry, did anyone respond to you saying they have an att uverse gateway by pace? i would love for someone to confirm changing this setting makes a difference. ill even walk them through it.
i wish i could edit older posts so information could be better presented. the guy in the other thread has a 'better' gateway than mine in terms of performance and features.
ive got a pace 5031NV-030 from 2016. it has a firmware log that show initial and current firmware. both are the same. about two weeks ago, i called att and one of the actions they took was to reflash the firmware. needless to say, internet connectivity/stability did not improve. this particular device only does phone and internet. internal wifi is 2.4N (currently disabled). i am not subscribed to the phone service. max rate in my area is 45mbps. i was at the 24mbps rate until yesterday. when i found the tcp session timeout improved stability, i reduced service to 18mbps to save a few dollars.
tcp session timeout at the pace gateway. one should reset both the gateway and orbi or wait more than a few hours for the changes to settle.
1800 seconds: tried this for five/six days with no issues. at least no family members complained.
7500 seconds: 24 hours, so far so good. i know i the orbi is at 7440.
86400 seconds: default value. loss of internet at sporadic intervals.
gateway -> settings -> firewall -> applications, pinholes and dmz or http://192.168.1.254/xslt?PAGE=C_3_1
gateway -> firewall -> advanced configuration -> tcp session timeout or http://192.168.1.254/xslt?PAGE=C_3_2
gateway -> settings -> diagnostics -> nat -> total sessions in use or http://192.168.1.254/xslt?PAGE=C_5_5i believe the internet service disruption is caused by the isp gateway being overloaded. the cause is the tcp session timeout value being grossly miss-matched between the two devices when the isp gateway has to do NAT or PAT. i guess it is not yet possible for the downstream router to self adjust to the isp gateway timeout.
i wonder if those who changed to other mesh solutions got lucky and that unit happened to have matching tcp session timeout values.
