Inconsistent service. Frequent outages.

For the last week I have been experiencing outages about four times an hour each outage lasting 5-10 minutes.    I work from home and need consistency in my service.   I was on phone with tech support for an hour on Friday.   Problem not fixed.   I have gigablast.   I have done all the online self help troubleshooting.    Has anyone else been experiencing problems this last week?