In addition to the Switch version of the game itself, Dark Souls Remastered's network test has been delayed on that platform. Namco Bandai has confirmed that not only will Switch owners have to wait to get their hands on the upcoming game, but they're also in line for a longer-than-expected wait to even give that version a try.
Following the recent news that Dark Souls Remastered has been delayed on Switch, the publisher provided an update on its planned network tests--essentially beta tests that will run in advance of the game's launch. The PS4 and Xbox One tests will be held as originally planned, but the same isn't true for Switch.
"Unfortunately, the change of the Switch release date has affected its network test and it will be arranged separately from the test for PS4/XB1," the official Dark Souls Twitter account confirmed. "Network test dates for the Switch will also be announced at the earliest possible opportunity."
Dark Souls Remastered was originally set to launch on Switch on May 25 alongside the other console and PC versions. Instead, it--along with the Solaire of Astora Amiibo--will launch sometime this summer. It runs at 1080p and 30 FPS in docked mode, and it includes the Artorias of the Abyss DLC along with various improvements.
Source : https://www.gamespot.com/articles/dark-souls-remastered-nintendo-switchs-beta-test-r/1100-6458460/