Hi there, I'm Tim and will be assisting you today. I have over 15 Years as an Engineer and have been with eBay, DoD and many others. I will do my VERY BEST to help you. If you like i can offer remote access and a call. In addition, with any positive rating I will support your question going forward for free.
Thats not necessarily your modem/router....could be your ISP. Are you asking us to replace that router? This is not your ISP or the company that makes your router, it is a technical support site. Your problem may well have zero to do with the router. Let me know if you need help investigating the issue,
I agree they should. There may be a way to do a factory reset on the unit, let me see.
There is a reset process, perhaps we should try that, if its a software thing this should resolve it.
Let me know if you want to try and reset this thing, i'll be around for a while.