Granstream GPX2130 network provisioning issue.

[Fletchers]

Good afternoon,

We've noticed an issue with the Grandstream GPX2130 & 40 devices were phones get assigned a 0.0.0.0 IP address in the 3CX console and become unusable. These phones need to be manually rebooted either physically or by the console. These are not accessible via the 3CX console and can only be viewed.

When the phone is then rebooted the phones are assigned an IP via DHCP from the 3CX server on a VOIP VLAN. The IP is picked up, but the subnet is blank and will eventually drop out again. But the phone is usable whilst it is active and connection to the 3CX console is established again.

When the phone is factory reset, in between the phone rebooting to apply firmware and cfg, the network status shows all the correct information within the network status page. Once it reboots they are all then lost again and then the waiting game again begins for when the phone may drop out again.

This issue does not occur on the Yealink devices we have and all network settings show.

For testing we raised another DHCP server with a different subnet range and brought up a Grandstream within this scope but the issue persisted through.

Cheers,
Rob.

 

[Evolute IT]

Good afternoon,

We've noticed an issue with the Grandstream GPX2130 & 40 devices were phones get assigned a 0.0.0.0 IP address in the 3CX console and become unusable. These phones need to be manually rebooted either physically or by the console. These are not accessible via the 3CX console and can only be viewed.

When the phone is then rebooted the phones are assigned an IP via DHCP from the 3CX server on a VOIP VLAN. The IP is picked up, but the subnet is blank and will eventually drop out again. But the phone is usable whilst it is active and connection to the 3CX console is established again.

When the phone is factory reset, in between the phone rebooting to apply firmware and cfg, the network status shows all the correct information within the network status page. Once it reboots they are all then lost again and then the waiting game again begins for when the phone may drop out again.

This issue does not occur on the Yealink devices we have and all network settings show.

For testing we raised another DHCP server with a different subnet range and brought up a Grandstream within this scope but the issue persisted through.

Cheers,
Rob.View attachment 11509

What router and switch are you using to manage the Voice VLAN? This seems like a network issue more than 3CX.

Also, test one phone on a DMZ port that will force the phone to use the normal VLAN instead of the Voice one, then see if it loses the IP again.

 

[Fletchers]

Thanks for the reply.

We have tried multiple different switches and can recreate this every time the Grandstream boots up. But this never happens on the Yealinks. This is why I'm thinking this may be down to a Firmware issue.

Any other suggestions that could help us? We're currently having to reboot phones daily and manually every day due to this.

 

[AWS2P]

Related to your screen copy ,your phones are not FW up to date , the latest is here
https://downloads.3cx.com/downloads/v160/templates/firmwareupdates/grandstream/gxp2130fw.bin

 

[Fletchers]

Thanks for the firmware,

What version is this before we put this into testing?

 

[JohnS_3CX]

Hi Fletchers

What is the PBX version please?

 

[Fletchers]

Hi John,

We're on 15.5.15502.6.

 

[JohnS_3CX]

These are the latest depending on your PBX

V15.5SP6 = 1.0.9.102

I would suggest to install the correct firmware on at least one phone and factory reset and reprovision it for testing, with the default 3CX firmware