Multiple MAC are denied in a single port

[Housers PFP]

Hello everyone.

I have some trouble in our network.

We have a Small Business Pro ESW-520-48P with some VoIP, Unifi WiFi system (ubiquiti), switch..

All phones are working, but Unifi and switch have problems to get IP from Firewall (Sophos SG210). Sometimes works and get IP, but other tries to get IP and doesn't get it.

In firewall all config seems ok. Could be some security settings in switch for block multiple MAC from a single ethernet port?

Any help would be nice.

Regards.

[Housers PFP · Accepted solution]

I solved this.

In Small Business Pro ESW-520-48P have an option for change Max Entries per Port in:

Security >> Traffic Control >> Port Security.

Now all works fine!

Regards.