Firmware version: 2.1.2 Build 20230210 Rel.62992

Error messages when trying to connect after disconnecting:

If I retry I get this from then on no matter how many times I try:

If I then disable and enable the VPN on the ER605, then it will work again ONCE.

I noticed that there was a firmware upgrade for my device. I made sure to choose the V2 hardware.

Ii downloaded the zip file and unzipped it.

I went to the firmware update page and loaded the .bin file in the box.

I hit upgrade, said Yes and get this error:

I am not sure what I am supposed to check on the file. It is a zip file, so if it unzipped it shouldn't have any errors.

  @trpitman 

Make sure you are downloading a FW version which match your device's region.

If you are not sure about the device's region, you always can use universal (Global) FW:

https://www.tp-link.com/en/support/download/er605/v2/

So long story short, not only version but also region of FW should match your device.

I had that "Update failed" issue when i was choosing FW which was from other region than my device.

  @RaRu That is exactly the firmware I downloaded. I am pretty sure I would have an English or US region device. I am in the US and bought in at the US Amazon.

It still gave that error while trying to update.

  @trpitman 

Hmmmm, thenk it's hard to say. Your current FW is 2.1.2? Then maybe try to upgrade the device to some older FW version that the newest one? Like 2.2.3 first, then 2.2.6

I'm not sure, just guessing.

  @RaRu I will try that. thanks.