PBX: blocked for too many failed authentications; User-Agent: Yealink SIP-T31P 124

[aniseko]

Hi,
I just installed a brand new Version 20.0 Update 4 (Build 487 Release).

Steps:
1) Select the user, configure IP phone - select Yealink T31P from the list, enter the mac-address then select "Local LAN / VPN"
2) Power up the Yealink T31P and connect to the internet

Then this "PBX: blocked for too many failed authentications; User-Agent: Yealink SIP-T31P 124" is on the Advanced>IP Blacklist
The phone has been configured with the setting from 3CX with "No Service" on the phone.

Anyone experiencing the same problem?

Pls help.
Thanks

 

[Alejandro_3CX]

What is the Local IP in this network? Is it a supported RFC1918 network?

 

[aniseko]

What is the Local IP in this network? Is it a supported RFC1918 network?

Hi Alejandro,

The phone is connected to a LTE internet router, IP subnet 192.168.1.0/24
The PBX has public Internet IP.

As mentioned before, the phone is configured with the settings from the PBX but with failed auths as per error.
Any reason why?

Thanks

 

[leejor]

If the set is on the local network (192.168.1.x), then I would whitelist it, unless you have some security reason not to.
Does the Activity Log give any additional information about why the set has been blacklisted?

 

[JohnS_3CX]

The phone is connected to a LTE internet router, IP subnet 192.168.1.0/24
The PBX has public Internet IP.

Then clearly it is not a local phone and should not have been configured as such.

You need an SBC, or replace the phone with a model that has built in router functionality if it's a single device on remote location.

 

[Gingerr6]

Double check firmware.

 

[aniseko]

hi all,
found the fix

Under the Options > Options
unselect Block . . . and select PBX . . .




thanks all.