Teleworker stuck on Applications Loading

[Josh7]

Hi,

I have an issue whereby our teleworker 5300 series phones are stuck on "Application Loading" after booting up.

Appreciate any assistance

Thanks

[Tech Electronics]

Josh7,

Make sure that all of the ports required for the 53xx series phones are allowed in and out of your firewall.

I have had this happen several times and it is always the firewall blocking ports; most likely SAC 3998 [TCP].

Thanks,

TE