Trying another client should work if transmission is the only application you are having issues with.
I found out the problem, it was in version. I removed the Transmission 2.84 & its PPA & downloaded the old version which was available by default in Synaptics i.e Transmission 2.75 (13675) & it started working as usual. Thanks for paying attention on my problem..
Just for curiosity, should I only prefer application from Synaptics which is available by default & avoid PPA application, so that I would not face this kind of problem again??? In which condition, we should go for PPA way??Go to the full post