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IP550 Lan network speed limiting to 10Mb

Occasional Visitor

IP550 Lan network speed limiting to 10Mb



I'm sure it's something I've overlooked, but we recently added two new IP550's to our existing setup of five existing IP550's, however these two new phones refuse to communicate at 100Mb - if set to auto on the PC/Lan ports, it will set itself to 10Mb Full duplex... even if the settings are forced on the phone to 100Mb FD, it opts to 10!


The configuration/setup has been carried out in exactly the same way as all the other existing handsets.


Main application is SIP phones are Rev Y ... I'm guessing that the firmware needs updating (or at least hoping it's something like that)



Message 1 of 3
Polycom Employee & Community Manager

Re: IP550 Lan network speed limiting to 10Mb

Hello Drhodes,

welcome to the Polycom Community.

I assume you have tested these phone on a working switchport that does not cause this issue for another phone?


To say that the Firmware needs updating is a slight understatement.


I suggest you bring these phones to a currently supported level and test again.

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 Poly 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 3
Occasional Visitor

Re: IP550 Lan network speed limiting to 10Mb

Thanks Steffen... I'll get the firmware updated and see if that helps at all.


Will update once done.

Message 3 of 3