On the day of installation I changed the Admin password on the new router and also changed the SSID name and the WLAN password.
Since about that time the download usage has doubled. I was alerted to the high usage when I got an email over the weekend from Spark saying we had used 80% of our limit with 5 days to run till roll over date. We've never gone close to the limit in the past and we've not changed anything that would affect downloads or uploads.
The first thing that comes to mind is someone we don't know about is logging into our WiFi. However the fact that we have a 14 character passkey of letters and numbers would make it difficult to crack and that this was in place from day one as was a new Admin password I don't think it's likely someone is logging in.
Can these be an issue with the way Spark meters the downloads.
The upload usage is up slightly but not enough from normal usage to say that it is also abnormal.
Any ideas would be appreciated. Thanks