Good morning everyone. I wanted to ask you some questions. I have a Trimble Netrs receiver. I connect to the serial port to set a static IP address. Everything seems to be working fine, but in the end, the IP address remains set to DHCP and I can't change it. Can anyone help me? Thanks everyone. Mauri

Hi The “easy way” to deal with a NetRS is to go in through the web interface. Log in to the address that DHCP has assigned. From the main page: Internet => Ethernet => click “Modify” Should get you to the page that lets you disable DHCP and switch to static. Once that is changed, you will have to point your browser at the new address. Bob You *might* find that there is a password on the device and it’s locked you out of doing things. Next st > On Oct 1, 2025, at 1:31 PM, Приз via time-nuts <time-nuts@lists.febo.com> wrote: > > Good morning everyone. > I wanted to ask you some questions. I have a Trimble Netrs receiver. I > connect to the serial port to set a static IP address. Everything seems to > be working fine, but in the end, the IP address remains set to DHCP and I > can't change it. Can anyone help me? > Thanks everyone. > Mauri > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

On 10/1/25 12:31, Приз via time-nuts wrote: > Good morning everyone. > I wanted to ask you some questions. I have a Trimble Netrs receiver. I > connect to the serial port to set a static IP address. Everything seems to > be working fine, but in the end, the IP address remains set to DHCP and I > can't change it. Can anyone help me? Set your router to assign a fixed IP address with DHCP. Most DHCP servers will allow you to enter the MAC address and have that MAC address always assigned a fixed IP address rather than a random assignment from the address pool. --  https://www.lloyd.aero Brian Lloyd 706 Flightline Spring Branch, TX 78070 [brian@lloyd.aero](mailto://brian@lloyd.aero) +1.210.620.0011

Hi Bob Thanks for the reply. The problem is that I can't connect to the web page because NetSR uses DHCP, but with an IP address of 0.0.0.0, a net mask of 255.255.255.0, and a gateway of 0.0.0.0. It allows me to change it from DHCP to static via the serial port, but in the end, nothing changes. It always stays on DHCP with an IP address of 0.0.0.0. I wanted to know if there's a trick to fix the problem. I've already reset it both from the power button and the serial port, including clearnv, then reset, but nothing changed. For clarity, I'm sending you a Putty screenshot showing the situation. To access the serial port, I used Putty. I also tried Termite on different computers, but the result is always the same. I've been working on it for a week, but I can't solve the problem. Thank you very much. Mauri Il giorno mer 1 ott 2025 alle ore 23:45 Bob Camp via time-nuts < time-nuts@lists.febo.com> ha scritto: > Hi > > The “easy way” to deal with a NetRS is to go in through the web interface. > Log in to > the address that DHCP has assigned. From the main page: > > Internet => Ethernet => click “Modify” > > Should get you to the page that lets you disable DHCP and switch to > static. > Once that is changed, you will have to point your browser at the new > address. > > Bob > > > > You *might* find that there is a password on the > device and it’s locked you out of doing things. Next st > > > On Oct 1, 2025, at 1:31 PM, Приз via time-nuts <time-nuts@lists.febo.com> > wrote: > > > > Good morning everyone. > > I wanted to ask you some questions. I have a Trimble Netrs receiver. I > > connect to the serial port to set a static IP address. Everything seems > to > > be working fine, but in the end, the IP address remains set to DHCP and I > > can't change it. Can anyone help me? > > Thanks everyone. > > Mauri > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

Hi If your DHCP is assigning 0.0.0.0, i”d fix that. If it’s assigning something else and the NetRS ignores it that would fit with the other things you are seeing. If this was my NetRS, the next step would be to re-flash the memory card. Pull the covers off and it’s right there plugged into the end of the PCB. Twist a simple metal clasp and it unplugs from the socket. I do this on any NetRS I’m trying to get running. They use a pretty normal CF card. You can go up to 2 GB (and maybe more). If you have another unit sitting around, duplicating the card from it is a quick and easy approach. There also are image files out on the net. Just what’s there always a bit of an unknown . The Unavco site is a good place to start looking. https://www.unavco.org/ It also is a good resource for a whole range of info on various older GPS devices. Unfortunately they do “clean things up” from time to time. That results in less information on some older models. Since the card interface on the board is *many* decades old, you may have to try several brands of card. Some seem to work and others don't. Once I switched to 2 GB cards I had a lot less trouble. I suspect that part of the issue came from cards that had some small amount less memory designed into them than the original target. These devices have been out for a long time. Having a CF card go bad is pretty normal. I’ve never had one do what you are describing. The more normal outcome is for them to go into a perpetual reboot loop. The get part way into initialization, hit a corrupted file and reboot. Bob > On Oct 2, 2025, at 1:52 AM, Приз via time-nuts <time-nuts@lists.febo.com> wrote: > > Hi Bob > Thanks for the reply. The problem is that I can't connect to the web page > because NetSR uses DHCP, but with an IP address of 0.0.0.0, a net mask of > 255.255.255.0, and a gateway of 0.0.0.0. It allows me to change it from > DHCP to static via the serial port, but in the end, nothing changes. It > always stays on DHCP with an IP address of 0.0.0.0. > I wanted to know if there's a trick to fix the problem. I've already reset > it both from the power button and the serial port, including clearnv, then > reset, but nothing changed. > For clarity, I'm sending you a Putty screenshot showing the situation. > To access the serial port, I used Putty. I also tried Termite on different > computers, but the result is always the same. I've been working on it for a > week, but I can't solve the problem. > > Thank you very much. > Mauri > > Il giorno mer 1 ott 2025 alle ore 23:45 Bob Camp via time-nuts < > time-nuts@lists.febo.com> ha scritto: > >> Hi >> >> The “easy way” to deal with a NetRS is to go in through the web interface. >> Log in to >> the address that DHCP has assigned. From the main page: >> >> Internet => Ethernet => click “Modify” >> >> Should get you to the page that lets you disable DHCP and switch to >> static. >> Once that is changed, you will have to point your browser at the new >> address. >> >> Bob >> >> >> >> You *might* find that there is a password on the >> device and it’s locked you out of doing things. Next st >> >>> On Oct 1, 2025, at 1:31 PM, Приз via time-nuts <time-nuts@lists.febo.com> >> wrote: >>> >>> Good morning everyone. >>> I wanted to ask you some questions. I have a Trimble Netrs receiver. I >>> connect to the serial port to set a static IP address. Everything seems >> to >>> be working fine, but in the end, the IP address remains set to DHCP and I >>> can't change it. Can anyone help me? >>> Thanks everyone. >>> Mauri >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@lists.febo.com >>> To unsubscribe send an email to time-nuts-leave@lists.febo.com >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe send an email to time-nuts-leave@lists.febo.com > <NetRS.png>_______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

Thanks so much for your help. As for the hard reset, I did it, but in the end, NetRS goes into an infinite loop. I have to stop it by pressing the tab bar and issuing the clearnv command, followed by the reset command. Only then does it exit the infinite loop, but then I can't get a static IP address to connect to with the browser. I'll try all these steps again, but I doubt they'll work. My impression at this point is that the CF card is damaged. There's an .img file on the Unavco website, but I can't download it. Does anyone have a copy or can download it? Can you provide one? I used the standalone version of Avanced IP Scanner, and it finds the router on my network, but not NetRS. In the meantime, I'm trying to work on it. Thank you so much, everyone, you're the best. Thanks, Bob Camp Thanks, Walt Thanks, Brian Lloyd Mauri Il giorno gio 2 ott 2025 alle ore 15:26 Bob Camp via time-nuts < time-nuts@lists.febo.com> ha scritto: > Hi > > If your DHCP is assigning 0.0.0.0, i”d fix that. If it’s assigning > something else and > the NetRS ignores it that would fit with the other things you are seeing. > > If this was my NetRS, the next step would be to re-flash the memory card. > Pull the covers > off and it’s right there plugged into the end of the PCB. Twist a simple > metal clasp and it > unplugs from the socket. I do this on any NetRS I’m trying to get running. > > They use a pretty normal CF card. You can go up to 2 GB (and maybe more). > If you have > another unit sitting around, duplicating the card from it is a quick and > easy approach. > > There also are image files out on the net. Just what’s there always a bit > of an unknown . The Unavco > site is a good place to start looking. > > https://www.unavco.org/ > > It also is a good resource for a whole range of info on various older GPS > devices. Unfortunately > they do “clean things up” from time to time. That results in less > information on some older models. > > Since the card interface on the board is *many* decades old, you may have > to try several > brands of card. Some seem to work and others don't. Once I switched to 2 GB > cards I had a lot less trouble. I suspect that part of the issue came from > cards that had > some small amount less memory designed into them than the original target. > > These devices have been out for a long time. Having a CF card go bad is > pretty > normal. I’ve never had one do what you are describing. The more normal > outcome > is for them to go into a perpetual reboot loop. The get part way into > initialization, hit > a corrupted file and reboot. > > Bob > > > On Oct 2, 2025, at 1:52 AM, Приз via time-nuts <time-nuts@lists.febo.com> > wrote: > > > > Hi Bob > > Thanks for the reply. The problem is that I can't connect to the web page > > because NetSR uses DHCP, but with an IP address of 0.0.0.0, a net mask of > > 255.255.255.0, and a gateway of 0.0.0.0. It allows me to change it from > > DHCP to static via the serial port, but in the end, nothing changes. It > > always stays on DHCP with an IP address of 0.0.0.0. > > I wanted to know if there's a trick to fix the problem. I've already > reset > > it both from the power button and the serial port, including clearnv, > then > > reset, but nothing changed. > > For clarity, I'm sending you a Putty screenshot showing the situation. > > To access the serial port, I used Putty. I also tried Termite on > different > > computers, but the result is always the same. I've been working on it > for a > > week, but I can't solve the problem. > > > > Thank you very much. > > Mauri > > > > Il giorno mer 1 ott 2025 alle ore 23:45 Bob Camp via time-nuts < > > time-nuts@lists.febo.com> ha scritto: > > > >> Hi > >> > >> The “easy way” to deal with a NetRS is to go in through the web > interface. > >> Log in to > >> the address that DHCP has assigned. From the main page: > >> > >> Internet => Ethernet => click “Modify” > >> > >> Should get you to the page that lets you disable DHCP and switch to > >> static. > >> Once that is changed, you will have to point your browser at the new > >> address. > >> > >> Bob > >> > >> > >> > >> You *might* find that there is a password on the > >> device and it’s locked you out of doing things. Next st > >> > >>> On Oct 1, 2025, at 1:31 PM, Приз via time-nuts < > time-nuts@lists.febo.com> > >> wrote: > >>> > >>> Good morning everyone. > >>> I wanted to ask you some questions. I have a Trimble Netrs receiver. I > >>> connect to the serial port to set a static IP address. Everything seems > >> to > >>> be working fine, but in the end, the IP address remains set to DHCP > and I > >>> can't change it. Can anyone help me? > >>> Thanks everyone. > >>> Mauri > >>> _______________________________________________ > >>> time-nuts mailing list -- time-nuts@lists.febo.com > >>> To unsubscribe send an email to time-nuts-leave@lists.febo.com > >> _______________________________________________ > >> time-nuts mailing list -- time-nuts@lists.febo.com > >> To unsubscribe send an email to time-nuts-leave@lists.febo.com > > <NetRS.png>_______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe send an email to time-nuts-leave@lists.febo.com > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

Hi The “easy to find” firmware is the 1.3-2 firmware upgrade package. Since it is just an update, I do not believe it has all of what’s supposed to be on the CF. You need to dig a bit deeper and see if they still have the full card dumps somewhere on the site. There used to be two of them stashed away in odd places. The ones I’m aware of all seem to lead off to an FTP site that no longer exists. Bob > On Oct 2, 2025, at 2:00 PM, Приз <gallusmaurizio@gmail.com> wrote: > > Thanks so much for your help. > > As for the hard reset, I did it, but in the end, NetRS goes into an infinite loop. I have to stop it by pressing the tab bar and issuing the clearnv command, followed by the reset command. Only then does it exit the infinite loop, but then I can't get a static IP address to connect to with the browser. I'll try all these steps again, but I doubt they'll work. My impression at this point is that the CF card is damaged. There's an .img file on the Unavco website, but I can't download it. Does anyone have a copy or can download it? Can you provide one? > > I used the standalone version of Avanced IP Scanner, and it finds the router on my network, but not NetRS. > > In the meantime, I'm trying to work on it. > > Thank you so much, everyone, you're the best. > > Thanks, Bob Camp > Thanks, Walt > Thanks, Brian Lloyd > > Mauri > > Il giorno gio 2 ott 2025 alle ore 15:26 Bob Camp via time-nuts <time-nuts@lists.febo.com <mailto:time-nuts@lists.febo.com>> ha scritto: >> Hi >> >> If your DHCP is assigning 0.0.0.0, i”d fix that. If it’s assigning something else and >> the NetRS ignores it that would fit with the other things you are seeing. >> >> If this was my NetRS, the next step would be to re-flash the memory card. Pull the covers >> off and it’s right there plugged into the end of the PCB. Twist a simple metal clasp and it >> unplugs from the socket. I do this on any NetRS I’m trying to get running. >> >> They use a pretty normal CF card. You can go up to 2 GB (and maybe more). If you have >> another unit sitting around, duplicating the card from it is a quick and easy approach. >> >> There also are image files out on the net. Just what’s there always a bit of an unknown . The Unavco >> site is a good place to start looking. >> >> https://www.unavco.org/ >> >> It also is a good resource for a whole range of info on various older GPS devices. Unfortunately >> they do “clean things up” from time to time. That results in less information on some older models. >> >> Since the card interface on the board is *many* decades old, you may have to try several >> brands of card. Some seem to work and others don't. Once I switched to 2 GB >> cards I had a lot less trouble. I suspect that part of the issue came from cards that had >> some small amount less memory designed into them than the original target. >> >> These devices have been out for a long time. Having a CF card go bad is pretty >> normal. I’ve never had one do what you are describing. The more normal outcome >> is for them to go into a perpetual reboot loop. The get part way into initialization, hit >> a corrupted file and reboot. >> >> Bob >> >> > On Oct 2, 2025, at 1:52 AM, Приз via time-nuts <time-nuts@lists.febo.com <mailto:time-nuts@lists.febo.com>> wrote: >> > >> > Hi Bob >> > Thanks for the reply. The problem is that I can't connect to the web page >> > because NetSR uses DHCP, but with an IP address of 0.0.0.0, a net mask of >> > 255.255.255.0, and a gateway of 0.0.0.0. It allows me to change it from >> > DHCP to static via the serial port, but in the end, nothing changes. It >> > always stays on DHCP with an IP address of 0.0.0.0. >> > I wanted to know if there's a trick to fix the problem. I've already reset >> > it both from the power button and the serial port, including clearnv, then >> > reset, but nothing changed. >> > For clarity, I'm sending you a Putty screenshot showing the situation. >> > To access the serial port, I used Putty. I also tried Termite on different >> > computers, but the result is always the same. I've been working on it for a >> > week, but I can't solve the problem. >> > >> > Thank you very much. >> > Mauri >> > >> > Il giorno mer 1 ott 2025 alle ore 23:45 Bob Camp via time-nuts < >> > time-nuts@lists.febo.com <mailto:time-nuts@lists.febo.com>> ha scritto: >> > >> >> Hi >> >> >> >> The “easy way” to deal with a NetRS is to go in through the web interface. >> >> Log in to >> >> the address that DHCP has assigned. From the main page: >> >> >> >> Internet => Ethernet => click “Modify” >> >> >> >> Should get you to the page that lets you disable DHCP and switch to >> >> static. >> >> Once that is changed, you will have to point your browser at the new >> >> address. >> >> >> >> Bob >> >> >> >> >> >> >> >> You *might* find that there is a password on the >> >> device and it’s locked you out of doing things. Next st >> >> >> >>> On Oct 1, 2025, at 1:31 PM, Приз via time-nuts <time-nuts@lists.febo.com <mailto:time-nuts@lists.febo.com>> >> >> wrote: >> >>> >> >>> Good morning everyone. >> >>> I wanted to ask you some questions. I have a Trimble Netrs receiver. I >> >>> connect to the serial port to set a static IP address. Everything seems >> >> to >> >>> be working fine, but in the end, the IP address remains set to DHCP and I >> >>> can't change it. Can anyone help me? >> >>> Thanks everyone. >> >>> Mauri >> >>> _______________________________________________ >> >>> time-nuts mailing list -- time-nuts@lists.febo.com <mailto:time-nuts@lists.febo.com> >> >>> To unsubscribe send an email to time-nuts-leave@lists.febo.com <mailto:time-nuts-leave@lists.febo.com> >> >> _______________________________________________ >> >> time-nuts mailing list -- time-nuts@lists.febo.com <mailto:time-nuts@lists.febo.com> >> >> To unsubscribe send an email to time-nuts-leave@lists.febo.com <mailto:time-nuts-leave@lists.febo.com> >> > <NetRS.png>_______________________________________________ >> > time-nuts mailing list -- time-nuts@lists.febo.com <mailto:time-nuts@lists.febo.com> >> > To unsubscribe send an email to time-nuts-leave@lists.febo.com <mailto:time-nuts-leave@lists.febo.com> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com <mailto:time-nuts@lists.febo.com> >> To unsubscribe send an email to time-nuts-leave@lists.febo.com <mailto:time-nuts-leave@lists.febo.com>

Does the NetRS have an internal lithium battery, and if it does, is yours still good? - Keelan On Wed, Oct 1, 2025 at 11:54 AM Приз via time-nuts <time-nuts@lists.febo.com> wrote: > Good morning everyone. > I wanted to ask you some questions. I have a Trimble Netrs receiver. I > connect to the serial port to set a static IP address. Everything seems to > be working fine, but in the end, the IP address remains set to DHCP and I > can't change it. Can anyone help me? > Thanks everyone. > Mauri > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com >

Thank you all so much. I can't download the .img file. I tried FileZilla, WinScp, and Sea Monkey. Have any of you managed to download it? Is it still available? As for the lithium battery, I don't know if it's inside, but I'll have to open it to check. Mauri Il giorno gio 2 ott 2025 alle ore 22:34 Keelan Lightfoot via time-nuts < time-nuts@lists.febo.com> ha scritto: > Does the NetRS have an internal lithium battery, and if it does, is yours > still good? > > - Keelan > > On Wed, Oct 1, 2025 at 11:54 AM Приз via time-nuts < > time-nuts@lists.febo.com> > wrote: > > > Good morning everyone. > > I wanted to ask you some questions. I have a Trimble Netrs receiver. I > > connect to the serial port to set a static IP address. Everything seems > to > > be working fine, but in the end, the IP address remains set to DHCP and I > > can't change it. Can anyone help me? > > Thanks everyone. > > Mauri > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe send an email to time-nuts-leave@lists.febo.com > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

Hi The Trimble NetRS is a late 1990’s design. It does not have any sort of battery in it. Pretty much everything is saved to a single CF memory card. All of the logged data is written to that card. The “big deal” of the NetRS is that it will lock to an external 10 MHz input. This lets you log RINEX files that reflect the time derived from that clock. When the RINEX is processed, you can extract local time information as a result. They often got used as “base stations” for various sorts of GPS survey stuff. That ment they *might* be logging files 24 hours a day for quite a while. Combine that with the early CF technology. It did not make for a “many decades” sort of reliability. The cards die and need to be replaced. The main downside is that they do not have a sawtooth corrected PPS output. They also need an external “dongle” to be able to connect to ethernet. In some cases that dongle sells for more than the NetRS. There is info out there to “roll your own” dongle. ------------------------------------- Depending on which file you are trying to download from Unavco, there might be various issues. The ones I looked at simply did not exist anymore. The link being used pointed to a server that no longer exists. That’s not a big deal since the file I found would not be of any help in this case. Bob > On Oct 2, 2025, at 4:47 PM, Приз via time-nuts <time-nuts@lists.febo.com> wrote: > > Thank you all so much. > I can't download the .img file. I tried FileZilla, WinScp, and Sea Monkey. > Have any of you managed to download it? Is it still available? > As for the lithium battery, I don't know if it's inside, but I'll have to > open it to check. > > Mauri > > Il giorno gio 2 ott 2025 alle ore 22:34 Keelan Lightfoot via time-nuts < > time-nuts@lists.febo.com> ha scritto: > >> Does the NetRS have an internal lithium battery, and if it does, is yours >> still good? >> >> - Keelan >> >> On Wed, Oct 1, 2025 at 11:54 AM Приз via time-nuts < >> time-nuts@lists.febo.com> >> wrote: >> >>> Good morning everyone. >>> I wanted to ask you some questions. I have a Trimble Netrs receiver. I >>> connect to the serial port to set a static IP address. Everything seems >> to >>> be working fine, but in the end, the IP address remains set to DHCP and I >>> can't change it. Can anyone help me? >>> Thanks everyone. >>> Mauri >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@lists.febo.com >>> To unsubscribe send an email to time-nuts-leave@lists.febo.com >>> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com