We have a lot of RUT240 with firmware RUT2XX_R_00.01.06.1_WEBUI.bin. When we ping the IP adress of the WAN (3G) we have no ping loss.
When i upgrade to RUT2XX_R_00.01.12.2_WEBUI.bin or RUT2XX_R_00.01.12.3_WEBUI.bin the ping loss is very high and this gives us a fault in ZABIX.
This is with the old (existing) and with a fresh configuration.
Also when upgrading via RMS the modem does not reconect and whe have to unplug the power for it to re-connect.
What can the reason be for this.