Hi, Since I've updated to v.6.15 on a RB2011, I have issues with TFTP helper (service port).

It is just do not work but I can see traffic on the port 69... I'm using tftp provisioning on a SIP phone (Aastra 6757i). Worked perfectly before ...

I was able to find a trick to be able to provisioning the phone via TFTP, this is how:

1. I disable Service port for TFTP
2. Try to provisioning the phone ... Phone refuse and wrote "skip"
3. When I see the word "skip" on the phone, I activate the TFTP Service Port on the Mikrotik
4, It works and it is reproducible

Is anyone has the same isssue with TFTP?
Is it a known bug?

PS: I was able to reproduce it on another aastra phone, model 6731i. I've downgraded to v.6.13, and issue is not there, everything works now.