Some Telugu Channels are distorted in TATASKY HD

[sgajjala]

Hi ,
I am facing a issue with Tatasky HD . Ever Since I changed my dish to common MDU in a apartment , some of the reginal channels are getting distorted.
I complained this to Tatasky , the representative came and just moved the wire here and there the channels started coming. After he left again the problem comes.

Any idea what could be the issue?

the following channels are not coming properly

Gemini Music
T News
ABN
Gemini Comedy