Please check the coax line on the modem is this connected to the firmly to the modem or not and check whether you can able to access modem settings page on the device connected to modem WIFI or on direct connection to confirm whether the modem is capable of receiving signal or not. Perform hard reset on the modem by following the steps mentioned on the below article then try re provisioning modem by contacting your service provider to get internet. If still same issue please do reach out to Arris.com/consumersupport

http://arris.force.com/consumers/articles/General_FAQs/G34-G36-Factory-Reset

I am having the same problem.  The article “not connecting to WOW”.  Been thru all the steps required by Arris tech still nothing.  Have case number and going to contact Arris tomorrow and let them try to resolve the problem. I pretty sure it is the modem because I have hooked up my old SBG10 and there are no issues.  WOW has informed me that they are not getting a response back from the modem when they bing it.  Just saying it seems that this model is having a lot of problems.

barry