We have a WR31 (WR31-M22A-DE1-TB) router that has great performance until snow and rain in the air and trees.
After some poorer signal condition in the -100 dB range, the modem sometimes becomes really hard to connect to. Only small blocks of data sometimes make it in and out to the internet.
It looks that PPP reset or GSM module reset has no effect. When it comes online and works after this kind of hardship the uptime counter reads only minutes.
After that it can work for weeks without problems.
Are there any known issues solved by any of the later firmwares?
The modem currently runs 184.108.40.206