Yealink Phones "No Connection"

[MSheinberg]

I have several Yealink t33g phones that have the same problem: They're on my network on the right VLAN (get the appropriate IP address and can hit the internet) but are not talking to Zoom to get any information)

I already confirmed that the phones are assigned to a user/common area extension but nothing is working. 

[FORE-Craig]

Hi @MSheinberg 

Were these previously used with another phone system? Did you perform a factory reset on them?

[enielsen]

• if previously used phones, were they factory reset as mentioned above?
• any chance firewall is blocking some of the provisioning ports?
• do any of your yealink phones provision and work?
• did you try the manual provisioning where you input the URL in the phone's web portal?