The phrase "attempt to block from" is correct and usable in written English.
It can be used when describing an effort to prevent someone or something from accessing or doing something.
Example: "The organization made an attempt to block from unauthorized access to their database."
Alternatives: "try to prevent from" or "make an effort to stop from".
One limit is the fact that some content providers that are accessible from PCs and Macs attempt to block access from game consoles, Google TV, Apple TV and other Internet-connected devices.
The case is an attempt to block South Africa from importing cheap medicines.
But the soldiers had made no attempt to block them from leaving, he said.
It also settled a cross-complaint filed by Broadcom in an attempt to block Intel from releasing some of its latest networking chips.
She is demanding that the offending dialogue is removed or she says she will attempt to block it from nationwide release in Italy, due next month.
The Recording Industry Association of America went to court earlier this year in an unsuccessful attempt to block Diamond from introducing the Rio, citing its lack of a copy-protection mechanism.
The move was widely seen by analysts as an attempt to block Trump from immediately putting a Republican in charge of the agency without Senate confirmation.
And in August, Aetna scaled back its participation in the markets because of losses, and also because of the justice department's attempt to block it from merging with another health insurance giant, Humana.
Blue construction panels were erected outside Mr. Liu's apartment building, where his wife, Liu Xia, is being detained, apparently in an attempt to block it from the view of foreign reporters gathering outside.
The militants have been preparing to defend the towns, and have planted landmines in an attempt to block troops from over-running them, residents told the BBC Somali service.
