Trouble getting Sky Watcher AL-EQ55i Pro to guide properly

[prsharma]

Hello:

I am new to astrophotography and guiding and having trouble getting my mount to track accurately. I opened a ticket with Sky Watcher and they asked for a PHD2 log from an unguided session. Sky Watcher support reviewed the log and are saying the mount is working fine but when I look at the log in PHD2 log viewer I see huge periodic swings on both axis. I thought I'd post the same logs here and see if someone here can confirm. If it is working normally, what can I do to improve tracking? 

In the log you will see I did the following:

- Ran calibration Assistant

- Ran Drift alignment

- Ran guiding assistant

- Ran the unguided session capture for 50 minutes

- Ran calibration assistant again that shows issues in Dec but the orthogonality error is very low (0.3). 

- Ran a short guided session that shows the issue I am having. Even though my polar alignment error is 3.1' 

Can anyone help point me in the right direction? 

Thank you!

Link to log file: https://openphdguiding.org/logs/dl/PHD2_logs_3A6P.zip