Cisco ISB7105 Wireless Receiver Connection Error

Obviously, make sure nothing got unplugged. Since you power cycled everything, it's a safe bet it's all plugged in.

Did anything move location?

Call 800-288-2020 and ask for a replacement. Immediately upon reception of the new one, take the old box to UPS or FedEx with your billing number handy and they'll do the rest.

Thank you.  Nothing has moved.  It was a replacement for one that died late last year and which I'd had for eons.  Now of a sudden this second one is doing the same thing.  It got increasingly difficult for it to connect until it refused to connect at all.

Will contact Att for a replacement.  I have older tv's and the wireless receiver they sent late last year didn't have the same connections as the one it replaced but I'm not in a financial position to replace my tv's, especially since nothing is wrong with them...and, last year when they were supposed to be sending me a new receiver they sent a new gateway exactly like the one I have.  When I called they said they'd get the receiver out to  me right away they instead sent me a new WAP.  I called back and they finally sent a receiver but since it didn't have the same hookups I was at a loss and they then sent out a tech who had to track down an adapter....etc etc etc.  Asked att why i couldn't just purchase a receiver like the one I used to have but they nixed that idea entirely for some reason unknown to me...

All of the AT&T TV Receivers come with Composite, Component, and HDMI connectors.  I thought they all came with Coax/RF out as well, but the one you say is failing (ISB7105) does not.  You would be hard pressed to find a TV, even one 25 years old, that doesn't have at least one, and probably more than one, connection technology in common with your Receiver.

Take a picture of the back of your TV where all the connectors are and post it here.

Here are the photos.  It's just that the previous receiver, an ISB7005, never gave me a problem until it did.  It had two sets of hookups and and a coax/RF that allowed me to run it thru my home theater receiver for different inputs, DVR, DVD, Bluray, Cable etc.  The ISB7105 won't allow me to configure the same setup.  Before, I could either listen to TV as is or select DVR on my home theater receiver remote and occasionally listen to live TV thru the amp for concerts, sports etc but now its either a hookup to always run tv thru the receiver or not at all [don't always want to hear the news in stereo].

But more importantly, after spending time with ATT yesterday, they did something to make the thing connect after I worked with it for two days so evidently its something on their end as I unplugged it last night and it won't connect again (2nd pic) no matter what I do.

...

Your TV has:

1) An RF Coax input

2) TWO Composite Inputs (YELLOW)

3) One Component input (Red, Blue, Green)

4) TWO S-video inputs (which the Receiver doesn't have).

ASSUMING that you know how to switch between these different inputs on your TV, then you can share your TV between the devices WITHOUT the switch you have connected on the back of your TV.

You can connect the TV Receiver to either the Coax, the Component or the Composite.  You can connect the DVR using the COAX and switch between "Channel 3 (or 4)" [DVR] and the Component/Composite input [U-verse].

Or, Maybe your DVR has Component, too, and you could switch between the component for the DVR and composite/[other]component for U-verse.

Or, you can just keep feeding component from your Receiver to the switch and using COAX to the TV, though something seems fishy about that.  You're not showing some of the connections.

I think you'll find your picture would be better without using the Coax.

Finally, I don't know if you realize this, but you can probably get an LCD TV with a the same diagonal as that JVC tube (guessing 32") for under $120.  The electricity savings would pay for it in 10 years.

https://www.amazon.com/dp/B07FPP6TB5

Thank you so much for taking the time to try and help me.  I'm pretty much a novice at electronics of this type but have figured out the inputs to the outputs and made it work for me.  The Tech connected the Coax adapter which was then connected to the Home theater but that hookup meant the only way I could hear the TV was thru the Home Theater receiver.

I'll take your suggestions to heart.  I initially made all the hookups with the previous att receiver 7005 which had two rows of composite hookups and allowed me to switch back and forth.  Somehow the 7105 not having the Coax input messed up my configuration

Thanks again for taking the time and have a great day ahead!

PS~ after a lengthy phone call last evening troubleshooting and cycling the WAP and wireless receiver, att is sending a new WAP and receiver, keeping my fingers crossed and praying