ETA is with the release of Ballsy Baboon (i.e next ubuntu LTS - 18.04) :):)
Try disabling bluetooth if your system has it and you don't need it. Works for my laptop - now wifi works as it should on suspend or enable/disable wifi. If no luck, search askubuntu, there are some scripts that might fix this for your system.
ETA is with the release of Ballsy Baboon (i.e next ubuntu LTS - 18.04) :):)
Try disabling bluetooth if your system has it and you don't need it. Works for my laptop - now wifi works as it should on suspend or enable/disable wifi. If no luck, search askubuntu, there are some scripts that might fix this for your system.