NR2101 keeps restarting even after reset

Taking the battery out and connecting it directly to the charger has the same behavior. 

I got a replacement, and .... exactly the same problem with the second device. It seems that this device does not like Portuguese 5G networks. When no sim card is inserted it never restarts, when a sim card is present and it connects to a 5G network it restarts. 

To my surprise the mobile operator store, said that they don't advise or sell this equipment anymore since the same problem is happening to them. 

Zyxel should really fix this, they will lose customers by selling very expensive devices that do not work. A simple firmware update would be ideal, but by looking at the date of the last firmware update, it tells me that no effort is being put into it. 

tonygibbs16 said:

Hello @fboleto

I have been looking at the NR2101 user guide available at https://support.zyxel.eu/hc/en-us/articles/4403365084818-5G-Devices-Advanced-Downloads-Firmwares-and-other-resources- to see if there is anything in there to help.

Under the APN, is the PDP set for IPv4 or IPv6 or IPv4 and IPv6 ?
     - it might be worth seeing if changing this setting changes the behaviour...

Since the reboot happens with a SIM inserted then I can only think that it is related to when it tries to activate the PDP context on the APN.

Do you have a SIM card that only supports 3G and 4G to see if it is related to the connection to 5G WWAN only or not?

These are just some thoughts from someone who is a Zyxel user.
     - I hope that they are helpful.

Merry Christmas.

Kind regards Tony 

Hello Tony, 

Thank you for your suggestion, I am afraid that did not solve the problem. I now have only ipv4, with a manual apn, but the problem still exists.