1040 v26.18 and my wifi sync is not working

yep, mine too. I don't know what they are (not) doing. It was always a problem. sometimes it worked but usually it doesn't work.What a poor implementation

same here! Never had such a messy Edge before. Mine is not synching at all: not via wif, not via phone. Have to disconnect - connect eacht time. Shame shame shame on you Garmin

Same here 

I just started map updated - and I am stuck after maps got removed :( Garmin Express also fails to add device and fetch maps :/

Finally it worked for me overnight but it took more than 8h.