The dual band Luxul ac3100 router was bought from the corporate division of Best Buy. Allegedly Luxul built routers for the military and very very secure coroporate structures from what I was told about two years ago. The linksys router I was previously using was constantly getting ping'd, and the unit was shutting of the internet from the intrusion with it's DOS (denial of service). Changing Ip's from Comcast, everything was tried until I saw that the Lynksys company was indeed hacked itself. I have five children and one high use gamer in the household. Once I threw out the Lynksys product and installed the Luxul system, all the issues stopped as Luxul gives you many more options to prevent outside intrusions.
I am a musician by trade and a music producer, so I too am into wireless electronic design and systems for the music industry.
There were 3 iPhone 10's in the house previously which had no issues. It's only when we upgraded to the 11 Pro max's that we noticed the internet issues while ONLY on 5 ghz bands. I have simulated the problem in multiple cities, multiples ISP's, and multiple types of routers.
My experience with the 11 pro max has been while on a 5 ghz network, the phone may work for a short time, varying from a few minutes to 10, but then suddenly looses the ability to upload at any speed, thus causing the internet to come to a screeching halt. Sometimes it's from moving around the house, moving away from the router. I have even disabled the access point and while within 20 feet of the home router (Luxul xor-3150), the issues recreates. Maybe cause it switched to the 2.4 but still within 5 ghz range. Perhaps the antenna hardware is itself is fault on the modem or it's the software switching issue.
My frustration has been with level 2 and 3 apple support and care, they act as if nothing is wrong, nor ever seem to get back to me about further diagnosing the situation. I have sent them multiple logs as they installed the diagnostic tool on my phone. My assumption is that not enough of the public utilizes the 5 ghz network for them to notice the fault. They even don't like to acknowledge these user forums. I only found consolation in the forums that I'm not crazy alone!!!!!....lol.....And reality $1200 later and five months after initial release there should be a fix. When the phone is on the 5 network for the brief moments, it's amazingly quick! My average download speed is 355 down, 23 up on 5 ghz, on 2.4 a more modest 45 down and 20 up.
Thank you for your willingness to respond and help.
Drew