Unable to connect to 5ghz after update + slow/crashing
I have a 40" TCL Roku TV Model 40S325. I have two issues, one thats more urgent to fix: 1. All of a sudden, I've lost the ability to connect to my 5ghz network on it at 2am this morning and 2. I've been having issues with the TV running extremely slow and crashing/rebooting randomly for months. In specific order:
I've been in IT for 20 years, so when I lost my 5ghz wifi connection at 2am randomly, I did everything possible to get it back.
1. I was out of town for 4 days, got home last night and noticed that both my TCL Roku TV and Roku Express connected to another TV had apparently received an update because now there's a ton more (useless) menu items on both. It's on version 12.5.5 build 4174-58.
At 2am, my router restarted and I lost the ability to connect to my 5ghz network on the Roku TV. Note: My Roku Express and all other dozen devices that use my 5ghz reconnected just fine. My 2.4ghz bqnd is also running everything find. It's JUST this TV.
Of course, I did everything possible to try to resolve this. Restarted the router and TV multiple timss (even though no issues with any other devices on either bands), I reset the network connection on the TV, I tried changing the wifi channels manually to those in the recommended ranges by Roku - no dice. It Will connect to my 2.4ghz just fine in an instant. I can see my 5ghz network but when I try to connect, it'll spin for 20 seconds then fail to the default error 014.
Now, common sense would be just one device not connecting would mean a possible wifi channel issue but I verified this by manually setting to different ones and also on auto, including checking DFS. It can see the 5 network but can't connect but can on the 2.4. I can't have steaming on my 2.4 network as I have that isolated to run specific equipment and don't need anything else bogging down the speed on that band.
The ONLY thing I have not tried yet is a factory reset. I'm about to get desperate enough to do so.
2. I've had progressively worsening issues with lag, slowness and crashing for quite a long time where itll just randomly reboot. I've skimmed the Roku forums about this issue months ago and read Roku support asking the same questions over and over again to everyone who has very commonly reported this issue and have not found an answer. I've noticed this gets worse with EVERY update Roku pushes out and it only seems to impact TV's that have Roku OS built in; not the seperate plug in devices because I have absolutely no issue with my Express doing this. I'm assuming it's the same situation where, such as in the case of any computer, over the years the hardware begins to become absolete to keep up with the amount of bulk updates/junk/software that keeps getting added to the OS. I believe this is a 2019 model, so I wouldn't be surprised if this is what's happening. I also wouldn't be surprised that whatever update hit while I was out of town and doing a hard restart after my router rebooted suddenly caused a glitch in the OS on the TV for me not to be able to connect to my 5ghz. At least, someone from Roku should at least acknowledge this as a strong possibility of this commonly reported issue with crashing for any TV's with the OS built in.
Ive listed model and software version, the troubleshooting I've done and have already read through the forums but nothing recommended has helped in this case. Other than a factory reset, what else could possibly be tried here that.i haven't already done? It's not the channel, it's not the wifi, it's the TV. I've narrowed it down to that. Any other ideas would be appreciated but I can't think of anything else.
Thanks.