Hi All, we have a number of out of band RB hAP routers out there which have a Sierra Wireless 320U 4G Modem connected to them and use the Telstra 4G LTE network, on the whole these work well, however they regularly, as in once every day or so, stop receiving data, however the LTE interface on the RB does not recognize that there is no data coming in and still thinks it's running and all is good. I have looked for a keepalive or something for the interface but can't find anything, I don't know if it's a Telstra network issue or the RB or perhaps just how it is but we need these to remain up as much as possible as they are for OOB access to our POP's, has anybody come across this issue before and have any suggestions ? As soon as you disable the LTE interface and re-enable it things work fine. I also have an SXT LTE router which does the same thing, so kind of thinking it's not a modem problem as they have the integrated one. Thanks Paul
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Paul Julian Sent: Thursday, 22 June 2017 9:16 AM To: public@talk.mikrotik.com.au Subject: [MT-AU Public] Telstra 4G Dropouts
Hi All, we have a number of out of band RB hAP routers out there which have a Sierra Wireless 320U 4G Modem connected to them and use the Telstra 4G LTE network, on the whole these work well, however they regularly, as in once every day or so, stop receiving data, however the LTE interface on
RB does not recognize that there is no data coming in and still thinks it's running and all is good.
I have looked for a keepalive or something for the interface but can't find anything, I don't know if it's a Telstra network issue or the RB or
how it is but we need these to remain up as much as possible as they are for OOB access to our POP's, has anybody come across this issue before and have any suggestions ?
As soon as you disable the LTE interface and re-enable it things work fine.
I also have an SXT LTE router which does the same thing, so kind of
Hi Paul, We've seen lots of reports of this kind of thing. It seems to plague some models more than others (though I have no hard evidence of that I can point to ;) and generally relates to conditions where there is poor or erratic signal. The most effective way to deal with it seems to be use of netwatch to execute usb power-reset on the modem when it fails. Cheers, Mike. the perhaps just thinking
it's not a modem problem as they have the integrated one.
Thanks Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
Years ago I recall in my 2G PPP modem days and embedded systems that a PPP session could stay open for maybe a few days but eventually the network would stop talking to the connection, even if there was data flowing over it, so there was code in the system to recycle the PPP instance if the data stopped flowing. This was checked by using a very regular keepalive mechanism. Even if you have keepalives going to try hold the link open it may just fall silent anyway. In your case a modem power cycle might be the only way to get it going again. I suspect the networks might want to stop hogging or blocking of IP/NAT resources in their network and force clients to keep churning their IP and NAT interfaces. Going by old billing details on my phones I suspect just about every time I did something on my phone a new PPP instance was created and then quickly closed or timed out. On 22 June 2017 at 09:22, Mike Everest <mike@duxtel.com> wrote:
Hi Paul,
We've seen lots of reports of this kind of thing. It seems to plague some models more than others (though I have no hard evidence of that I can point to ;) and generally relates to conditions where there is poor or erratic signal. The most effective way to deal with it seems to be use of netwatch to execute usb power-reset on the modem when it fails.
Cheers, Mike.
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Paul Julian Sent: Thursday, 22 June 2017 9:16 AM To: public@talk.mikrotik.com.au Subject: [MT-AU Public] Telstra 4G Dropouts
Hi All, we have a number of out of band RB hAP routers out there which have a Sierra Wireless 320U 4G Modem connected to them and use the Telstra 4G LTE network, on the whole these work well, however they regularly, as in once every day or so, stop receiving data, however the LTE interface on the RB does not recognize that there is no data coming in and still thinks it's running and all is good.
I have looked for a keepalive or something for the interface but can't find anything, I don't know if it's a Telstra network issue or the RB or perhaps just how it is but we need these to remain up as much as possible as they are for OOB access to our POP's, has anybody come across this issue before and have any suggestions ?
As soon as you disable the LTE interface and re-enable it things work fine.
I also have an SXT LTE router which does the same thing, so kind of thinking it's not a modem problem as they have the integrated one.
Thanks Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
Thanks Jason, I think you might be on the money there about them not wanting to keep devices connected to the networks, maybe that's the trick perhaps, just every hour drop the interface and bring it back up. Regards Paul -----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Jason Hecker (Up & Running Tech) Sent: Thursday, 22 June 2017 9:36 AM To: MikroTik Australia Public List Subject: Re: [MT-AU Public] Telstra 4G Dropouts Years ago I recall in my 2G PPP modem days and embedded systems that a PPP session could stay open for maybe a few days but eventually the network would stop talking to the connection, even if there was data flowing over it, so there was code in the system to recycle the PPP instance if the data stopped flowing. This was checked by using a very regular keepalive mechanism. Even if you have keepalives going to try hold the link open it may just fall silent anyway. In your case a modem power cycle might be the only way to get it going again. I suspect the networks might want to stop hogging or blocking of IP/NAT resources in their network and force clients to keep churning their IP and NAT interfaces. Going by old billing details on my phones I suspect just about every time I did something on my phone a new PPP instance was created and then quickly closed or timed out. On 22 June 2017 at 09:22, Mike Everest <mike@duxtel.com> wrote:
Hi Paul,
We've seen lots of reports of this kind of thing. It seems to plague some models more than others (though I have no hard evidence of that I can point to ;) and generally relates to conditions where there is poor or erratic signal. The most effective way to deal with it seems to be use of netwatch to execute usb power-reset on the modem when it fails.
Cheers, Mike.
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Paul Julian Sent: Thursday, 22 June 2017 9:16 AM To: public@talk.mikrotik.com.au Subject: [MT-AU Public] Telstra 4G Dropouts
Hi All, we have a number of out of band RB hAP routers out there which have a Sierra Wireless 320U 4G Modem connected to them and use the Telstra 4G LTE network, on the whole these work well, however they regularly, as in once every day or so, stop receiving data, however the LTE interface on the RB does not recognize that there is no data coming in and still thinks it's running and all is good.
I have looked for a keepalive or something for the interface but can't find anything, I don't know if it's a Telstra network issue or the RB or perhaps just how it is but we need these to remain up as much as possible as they are for OOB access to our POP's, has anybody come across this issue before and have any suggestions ?
As soon as you disable the LTE interface and re-enable it things work fine.
I also have an SXT LTE router which does the same thing, so kind of thinking it's not a modem problem as they have the integrated one.
Thanks Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.co m.au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com. au
-- <https://www.upandrunningtech.com.au> _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Paul Julian Sent: Thursday, 22 June 2017 9:16 AM To: public@talk.mikrotik.com.au Subject: [MT-AU Public] Telstra 4G Dropouts
Hi All, we have a number of out of band RB hAP routers out there which have a Sierra Wireless 320U 4G Modem connected to them and use the Telstra 4G LTE network, on the whole these work well, however they regularly, as in once every day or so, stop receiving data, however the LTE interface on
RB does not recognize that there is no data coming in and still thinks it's running and all is good.
I have looked for a keepalive or something for the interface but can't find anything, I don't know if it's a Telstra network issue or the RB or
how it is but we need these to remain up as much as possible as they are for OOB access to our POP's, has anybody come across this issue before and have any suggestions ?
As soon as you disable the LTE interface and re-enable it things work fine.
I also have an SXT LTE router which does the same thing, so kind of
Thanks Mike, yes that's where I am at right now is netwatch to drop the interface and bring it back up, but it would be good to know if the issue can be resolved. Some sites do have marginal signals of say -80 to -81, but really that should be OK. Even sites with good signals drop though. Regards Paul -----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Mike Everest Sent: Thursday, 22 June 2017 9:22 AM To: 'MikroTik Australia Public List' Subject: Re: [MT-AU Public] Telstra 4G Dropouts Hi Paul, We've seen lots of reports of this kind of thing. It seems to plague some models more than others (though I have no hard evidence of that I can point to ;) and generally relates to conditions where there is poor or erratic signal. The most effective way to deal with it seems to be use of netwatch to execute usb power-reset on the modem when it fails. Cheers, Mike. the perhaps just thinking
it's not a modem problem as they have the integrated one.
Thanks Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com. au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Paul Julian Sent: Thursday, 22 June 2017 10:00 AM To: 'MikroTik Australia Public List' <public@talk.mikrotik.com.au> Subject: Re: [MT-AU Public] Telstra 4G Dropouts
Thanks Mike, yes that's where I am at right now is netwatch to drop the interface and bring it back up, but it would be good to know if the issue can be resolved.
Some sites do have marginal signals of say -80 to -81, but really that should be OK. Even sites with good signals drop though.
Regards Paul
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Mike Everest Sent: Thursday, 22 June 2017 9:22 AM To: 'MikroTik Australia Public List' Subject: Re: [MT-AU Public] Telstra 4G Dropouts
Hi Paul,
We've seen lots of reports of this kind of thing. It seems to plague some models more than others (though I have no hard evidence of that I can
Hi Paul, For mobile networks, -81 is usually very good. A bad signal is usually beyond -100 dBm ;) Cheers! point
to ;) and generally relates to conditions where there is poor or erratic signal. The most effective way to deal with it seems to be use of netwatch to execute usb power-reset on the modem when it fails.
Cheers, Mike.
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Paul Julian Sent: Thursday, 22 June 2017 9:16 AM To: public@talk.mikrotik.com.au Subject: [MT-AU Public] Telstra 4G Dropouts
Hi All, we have a number of out of band RB hAP routers out there which have a Sierra Wireless 320U 4G Modem connected to them and use the Telstra 4G LTE network, on the whole these work well, however they regularly, as in once every day or so, stop receiving data, however the LTE interface on the RB does not recognize that there is no data coming in and still thinks it's running and all is good.
I have looked for a keepalive or something for the interface but can't find anything, I don't know if it's a Telstra network issue or the RB or perhaps just how it is but we need these to remain up as much as possible as they are for OOB access to our POP's, has anybody come across this issue before and have any suggestions ?
As soon as you disable the LTE interface and re-enable it things work fine.
I also have an SXT LTE router which does the same thing, so kind of thinking it's not a modem problem as they have the integrated one.
Thanks Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com. au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Paul Julian Sent: Thursday, 22 June 2017 10:00 AM To: 'MikroTik Australia Public List' <public@talk.mikrotik.com.au> Subject: Re: [MT-AU Public] Telstra 4G Dropouts
Thanks Mike, yes that's where I am at right now is netwatch to drop the interface and bring it back up, but it would be good to know if the issue can be resolved.
Some sites do have marginal signals of say -80 to -81, but really that should be OK. Even sites with good signals drop though.
Regards Paul
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Mike Everest Sent: Thursday, 22 June 2017 9:22 AM To: 'MikroTik Australia Public List' Subject: Re: [MT-AU Public] Telstra 4G Dropouts
Hi Paul,
We've seen lots of reports of this kind of thing. It seems to plague some models more than others (though I have no hard evidence of that I can
Haha, yep good point, still have my wireless brain engaged..... -----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Mike Everest Sent: Thursday, 22 June 2017 10:05 AM To: 'MikroTik Australia Public List' Subject: Re: [MT-AU Public] Telstra 4G Dropouts Hi Paul, For mobile networks, -81 is usually very good. A bad signal is usually beyond -100 dBm ;) Cheers! point
to ;) and generally relates to conditions where there is poor or erratic signal. The most effective way to deal with it seems to be use of netwatch to execute usb power-reset on the modem when it fails.
Cheers, Mike.
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Paul Julian Sent: Thursday, 22 June 2017 9:16 AM To: public@talk.mikrotik.com.au Subject: [MT-AU Public] Telstra 4G Dropouts
Hi All, we have a number of out of band RB hAP routers out there which have a Sierra Wireless 320U 4G Modem connected to them and use the Telstra 4G LTE network, on the whole these work well, however they regularly, as in once every day or so, stop receiving data, however the LTE interface on the RB does not recognize that there is no data coming in and still thinks it's running and all is good.
I have looked for a keepalive or something for the interface but can't find anything, I don't know if it's a Telstra network issue or the RB or perhaps just how it is but we need these to remain up as much as possible as they are for OOB access to our POP's, has anybody come across this issue before and have any suggestions ?
As soon as you disable the LTE interface and re-enable it things work fine.
I also have an SXT LTE router which does the same thing, so kind of thinking it's not a modem problem as they have the integrated one.
Thanks Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com. au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com. au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com. au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
participants (3)
-
Jason Hecker (Up & Running Tech) -
Mike Everest -
Paul Julian