Orbi 963 Devices not connecting

@daashmor wrote:

Firmware = 6.3.7.10_3.3.3 (latest available)

Don't know ISP info and can't see how that is relevant, given there are no issues with speed or access for the majority of devices and the problem devices once connected.

ISP Info is relevant as we are trying to establish if there is a router and wifi here or not. Can cause problems. Reason why we ask. 

Spectrum ES2251 Modem. DOCSIS 3.1eMTA. Does data and voice. I do not use the voice.

Router (attic) to wired sat (basement) is about 70'. Router to the wireless sat (garage) is about 90'. Sat to Sat is about 140'. 

What CAT# LAN cable are you using to connect the RBS to the RBR? CAT6A is recommended. 

Cables are CAT6, not possible to change this.

Router sits in about 80 degree max space. 

Over time, heat will damage the Orbi units. This would not be recommended.

80 degrees seems reasonable for electronics. However, I will move it to the other side of the wall to keep it 6 degrees cooler.

This only happens to a select few wireless devices. Namely my primary laptop Dell Precision 7530. Also affects a Lenovo W540, another Dell Latitude 5530. Also affects Sonos Arc, Sub, Beam, One, and Roam.

I have not tried isolating Orbi devices since they all work together. The configuration should be seamless and act like one device. The point of mesh right? System indicates this problem laptop is connected to the router. 

Primary target is the Dell 7530, any drop in wifi, toggling of radios, or reboot results in no auto reconnect. I MUST open the settings and click connect 30-45 seconds later I finally get a connection.

Be sure any ethernet or wifi adapter drivers are updated on the PCs or Laptops. 

All drivers are current. That was my first step.

Almost like the router/armor has blacklisted certain devices. How do you clear that?

Disable Armor and see if this changes anything.

Disabled, no change.

Wireless config is attached. Closest neighbor is about 500' away. 

Try channels 1 and 40. 

Channels set, no change.