First time post here, desperate and looking for any advice or possibly experience with this issue. My wife and I moved into a new home just over 2 years ago. It was already hooked up with Xfinity through Comcast and we decided to just re-activate the service. We had no issues for almost 2 years, and even upgraded to the "Blast" package, which boosts us to 250 mbp/s download speeds. We both are avid gamers and spend a lot of time on our computers, xbox's, and phones.. and have never had any issues besides the odd Gateway reset when there's a glitch every few months. Fast forward to just a few months ago. The internet is a NIGHTMARE now. With no warning, our internet has started to experience extremely long, strange "disconnects." For example: Wife and I both playing an Xbox game together with my brother over online play. I simultaneously play a computer game while we do this. Without warning, all our characters stop moving. We can no longer hear each other over our voice chat. Party chat disconnects and says we have a networking issue. I then realize my computer game isn't responding to my commands.. but other players around me are actively moving and connected, and I can see them. We then check our cell phones and see we are no longer connected to the WiFi. We attempt to reconnect, and our phones both tell us "incorrect password." How can the password be incorrect? As a last resort, I head downstairs and call out to my Google Home, which instantly responds that it is "not connected to the WiFi right now." EDIT: Also worth noting that a speed test returns a result of 40 mbp/s download speeds during these lag spikes.. when I normally get 250 mbp/s (That's if I can even connect to the Speed Test website.) The kicker is that each of these devices are all displaying that they are connected with internet access. My laptop has full signal strength and says "internet access." Both of our Xbox's are able to view the game store and friends lists, but unable to join games together or connect in a party chat. When this issue first started, a simple Gateway reset would fix it, and it wouldn't happen until the next day or 2. Now, Gateway reboots don't do anything, and we literally have to just wait it out until it decides to work again. We recently had an Xfinity tech come out to the house. We replaced our modem from 2016 with the newest, best 2018 modem they offered. The coax cable ends were replaced throughout the house, and the main cable running from the backyard to the house was replaced. Things were looking up for 3 days in a row, until the issue just arose again. All the same symptoms, no improvements. My biggest issue here is that the technicians that come to my house are just as clueless about this as me. The last tech was just shooting off theories and suggestions and troubleshooting. He had no clue what the cause was, how to fix it, or how to isolate it. Basically changed some cables, and said to call back if that didn't work. It's exhausting dealing with Comcast customer service multiple times a week and fighting for a technician to come to my property, who doesn't even have a clue how to help me. The main things that confuse me are these: Why do my devices say they are connected to the internet, but cannot load web pages, join online games, etc during these "lag spikes?" How can an issue like this suddenly arise with no change in ISP, hardware, or service package? What makes my Gateway start refusing it's own password on our iPhones? The same password it was connected with a minute ago, is now incorrect. And when the internet stabilizes.. the "incorrect password" is now correct! Any and all advice, experience, or help would be greatly appreciated. I am considering cancelling all online services I pay for until I am able to actually USE my internet.
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