currently im having reoccurring issues with my isp and am on the verge of moving to another one , i just wanted to see what everyone thought would be a reasonable amount of time you would give a isp to fix the issue or move on, this would be from the point of first contact between your isp, so include diagnostic times, call out times etc.
edit*
a line fault diagnosis on your end would be considered "fixed".
It is a somewhat subjective question. It really does depend on where the actual problem lies.
If it is a problem with your physical phone line for example then changing ISP's will not fix anything. The issue in that case needs to be rectified regardless of ISP.
What is the problem your actually having?