Consistently Failed Web Searches and Document reading

So I am finding my gpt is unable to reliably perform web searches and aggregate the data requested in the prompt. Also, my gpt is unable to read documents such as Excel and pdf. At times the gpt will even say it is beginning a task like a web search or creating a document but nothing will happen.

Is this internet connection/speed related, due to the number of people using gpt at the same time I am, an issue with the file sizes, or a processing power issue on either my end?