WiFI will not work on 4.2 update

got new series 3 nike + christmas. on setting watch elected 4.2 update. unfortunately wifi not work. did follow recommended checks , ensured wifi 2.4ghz. selected forgot network , reset again bluetooth on. restarted watch , resorted un pairing , setting again. tried brother-in-laws series 1 watch , works fine 4.2 update or maybe there fault in watch. before doing update never tested on 4.0
steps followed on link below...
https://discussions.apple.com/thread/8144818

have option of sending watch in 'repair' watch can reverted baseline 4.0 or should wait until 4.3 comes out. else having issue ? there can try ? appreciate inputs. many in advance.

p.s. series 3 model have not have cellular non-lte model.

 

wifi connects , works me (aw3 gps watchos 4.2).



there lot suggest trying. before sending recommend calling tech support can step through icloud settings , such.

me "took minute", assume because needed download wifi passwords keychain via iphone. took longer wifi calling start working. when got around trying diagnosing issue had resolved itself.

 

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