I have two gen 4’s, a 2 tuner and a 4 tuner. I used the 2 tuner to archive a tv show or two and don’t check it often, just every few weeks to a couple of months.
This morning I tried to open this 2 tuner using Roku, and it went to the sign in screen and declared itself unseen by my network. I could not get out of this screen by punching any button on the Roku remote, though I could get back to the Roku home screen. Then I would see the sign in screen again, and was not able to open either tablo.
Basically the same in the IOS app for gen 4, but when I tried to open the 2 tuner, it told me to scan channels, with a bar indicating it was already 75% complete with the scan (even though I had never started one). Never seen this before.
Thinking that a channel scan would cause even more problems, I first experimented with router and Roku reboots, and power cycling Rokus. Also force restart of ipad. No change. Then I did the channel scan on the 2 tuner, from the IOS app, and it completed except no channels were selected; I had 15 selected ( same number of chans on each Roku)before this all started.
After the channel scan,the 2 tuner started working normally again, and switching between the 2 and 4 tuners was even very fast. Problem solved, but I have never had this problem before and it came out of nowhere. I found that in spite of showing no channels selected after I did the channel scan, the 2 tuner has in fact been recording and archiving, for the last month, most but not all episodes of the tv show I had set it for. I am thinking about deleting them al land starting over.
Before decding to do the channel scan, I tried to open the 2 tuner using my backup ONN puck, and found it acted pretty much like the IOS app, except there was no screen to tell me to do a channel scan.
Along the way there were other unfamiliar things, such as a screen telling me that my Tablo could not be found in the network, and I could click to try to connect again, or click to disconnect, which would mean I would have to connect to a different Tablo, so the screen said. Very confusing.
I am wondering if the fact that I open up my 2 tuner so infrequently caused these problems; OTOH I have been opening the 2 tuner only every few weeks for prob a year, and there have been no issues of this nature. Also as far as my 4 tuner, which I use every day, no issues to speak of for the last 4-6 months.