Has it reconnected to your WIFI? I have set mine up with an assigned/reserved IP address to the router so it attempts to use the same IP address on reboot or loss of power.
I looked around in the devices list, and disabled my PWS. Rebooted the GW, and the update went through. Re-enabled the PWS and it shows my outside data again.
Out of curiosity if you know, if its getting the PWS outside data, is the WS view app display getting its inside temp/humidity and baro data from its attached sensor instead of from the PWS console feed? I am guessing yes.
Now to get it to send data to CWOP is my next mission.
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EDIT - left out a word that made a sentence make no sense