Galaxy Note 5, working for months, now Not registered on network error

[CaptainSnorkel]

Getting a "Not registered on network error" now, halfway through the day after making calls earlier in the day.  Nothing has been changed. 

Network mode is GSM/HSPA/LTE (auto connect)

Access Point Name is Public Mobile 2 (sp.mb.com)

Network Operator is Telus

When I scan for all available networks, I can see

   Public Mobile

   EXT

   Bell

   Freedom

   AT&T

   313100

Choosing Public Mobile or Select automatically just kept returning me to Telus.  Just now as I am typing this, I touched 313100 by mistake and of course after a long interval it informed me that the SIM was not allowed on that network.  I then hit Select automatically once more and this time it came up as Public Mobile.  So I tried a phone call and it worked.

Any idea what is going on?

[CaptainSnorkel]

@toxicfire 

Thanks for the suggestion, using airplane mode sounds like a good trick to try whenever we have connection problems.

[toxicfire · Accepted solution]

If its now working it may have just been your phone was having issues connecting to a proper tower.

If this happens enable(turnon) airplane mode wait 15 seconds then turn it off and that usually does the trick.

Rebooting the phone too sometimes helps.

We get similar things here.

[Dunkman]

@CaptainSnorkel 

Edit:  

Didn't read the last part.  At least it is working now....  

[Anonymous]

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@CaptainSnorkel wrote:

Getting a "Not registered on network error" now, halfway through the day after making calls earlier in the day.  Nothing has been changed. 

Network mode is GSM/HSPA/LTE (auto connect)

Access Point Name is Public Mobile 2 (sp.mb.com)

Network Operator is Telus

When I scan for all available networks, I can see

   Public Mobile

   EXT

   Bell

   Freedom

   AT&T

   313100

Choosing Public Mobile or Select automatically just kept returning me to Telus.  Just now as I am typing this, I touched 313100 by mistake and of course after a long interval it informed me that the SIM was not allowed on that network.  I then hit Select automatically once more and this time it came up as Public Mobile.  So I tried a phone call and it worked.

Any idea what is going on?

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Sounds like you might have stumbled upon a nice resolution. Not sure why it would have stopped on you in the first place though.