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Soundpoint 331 PC Port losing Connection.


Soundpoint 331 PC Port losing Connection.

Good Morning,


I have the following problem:

a number of Polycom soundpoint IP 331 Phones with software version 3.3.2 bootrom 4.3.1

The phone is connetec to the network and works fine.

Laptop connected to the PC Port at first connects fine but after a few hours the PC loses connection to the network.

Changing cables and reconnecting lan cable to phone and pc does not work.

You have to power down the phone then power it up again for it to work for a day or 2 then follow the same procedure of Power cycle the phone.

We have updated the software to version 3.3.4, Changed the speed and duplexing on PC and Phone but still the same thing happens.

What can be the problem?

Attached is the phone logs.




Message 1 of 2
Polycom Employee & Community Manager

Re: Soundpoint 331 PC Port losing Connection.

Hello Ruben,

as you are the reseller for this phone I would suggest you raise a ticket with our support team. 


They can work with you gathering the relevant logs to troubleshoot this.


You got a few errors in your configuration so I suggest you check this as well.


Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. All posts and words are my own & do not represent the views of Employer.


Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 2 of 2