Hi, for the past month or so my current tp link mr600 V2 router isn't picking up carrier aggression for 2 supported bands, it's only picking up just the 1 now. I've had and bought this router 2 years, 9 months ago, and it's always picked up 4g+ 2 bands since recently having problems. I only noticed by the symbols on front of router, 4g+ is off and not lit.

I went into the router page and can see it only says 4g on there and not the usual 4g+. Usually connects to bands 3 & 20 through 4g+, but only showing 1 band , which is band 3, on 4G. As there been recent changes or anything ?.

I've tested this exact SIM card into my Xiaomi 13 T Pro 5G compatible phone, and it picks up 5g on my phone, so it supports 4g+ and higher. So definitely not the SIM or my current provider.

I'm currently still on 1.6 firmware, because when I downloaded the 1.7 firmware update like 6 months ago, I was constantly having problems with it, like the 4g+ symbol was constantly flashing and going off and on every 2 seconds and the logs were erratic, so I had to downgrade back onto 1.6 firmware version and it's bk to normal, and been fine since up to now, with this current problem.

I can see now on firmware update page there's a new 1.8 firmware version for page router. I'm afraid to update it incase I have the same problems with 1.7 version. So if I tried updating to this 1.8 firmware, will this sort it or not.

Craig