That says it is connected - dont trust the ‘disconnected’ status on console - - occasionally gets stuck (I think it is a scrapped value from another database/link, though will usually quickly start updating when triggered by traffic showing a last seen type time stamp), and may take a few hours to correct itself… do you have a node to hand? Is it showing data on TTN Console in Application and or Device views? If so all good and wouldnt worry… Also if you look at you GW’s console page listing do you see one listed as ID EUI… Name Auto-migrated-EI… or similar?
See here: