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dotbill's avatar
dotbill
Tutor
Jul 23, 2021

MR5200 won't attach to n77 after firmware update - multiple questions!

I have a number of MR5200 that I use for testing locally on a local network... The old firmware (NTGX55_10.29.11.00) worked really well on my band 3 / n77 5G NSA setup however a newer firmware that g...
jzz15's avatar
jzz15
Aspirant
Sep 30, 2021

Same problem

After upgrade to NTGX55_12.03.09.00

I can only use 4G+

Before upgrade, I can use 5G with china telecom and china unicom.

Also in model.json,

 i get same result:

 

"nr5gsigRsrp": "-32768 dBm",
"nr5gsigRsrq": "-32768 dB",
"nr5gsigSnr": "-3276 dB"

JohnPeng's avatar
JohnPeng
NETGEAR Expert
Sep 30, 2021
jzz15 wrote:

Same problem

After upgrade to NTGX55_12.03.09.00

I can only use 4G+

Before upgrade, I can use 5G with china telecom and china unicom.

Also in model.json,

 i get same result:

 

"nr5gsigRsrp": "-32768 dBm",
"nr5gsigRsrq": "-32768 dB",
"nr5gsigSnr": "-3276 dB"

We have a MR release coming out next week to address the issue. Please standby.

  • jzz15's avatar
    jzz15
    Aspirant
    Sep 30, 2021

    Thanks John Peng!

    Hope new firmware can fix this!

    because my iPhone12 Pro(also qualcomm x55) works fine with 5G at same place.

  • dotbill's avatar
    dotbill
    Tutor
    Oct 05, 2021

    Just an update for anyone that reads this thread - a lot of the detail was taken into private messages with John Peng - a regression was found in driver versions which John and his team produced a testing version of firmware for the devices I was using (circa 20-30 units) and also fixed another MTU related issue too that hopefully is being resolved into the public release he has mentioned above.

     

    Massive thanks are due to John and his team who worked on a fix far quicker than I was expecting.

    • JohnPeng's avatar
      JohnPeng
      NETGEAR Expert
      Oct 05, 2021

      The next public release will be posted online this week.

       

      Thanks dotbill 

       

      • benyba's avatar
        benyba
        Guide
        Oct 13, 2021

        Hi,

         

        I'm not 100% sure it's related but I've deployed yesterday the new firmware below.

        MR5200-100EUS_04.02.196.00

         Unfortunately I still have stability issues on B3 + 5GSUB6 that I didn't have with 10.29.11 firmware.

        To clarify, the RS-SINR is highly unstable moving constantly from 7dB to -3276dB in the status page and ultimately drops 5GSUB6 to LTE :

        "diagInfo": [  {		
		"lteAttached": true,
		"nr5gAttached": true,
		"endcEnabledConfig": true,
		"ltesigValid":true,		
		"ltesigRssi":"-69 dBm",	
		"ltesigRsrp": "-98 dBm",
		"ltesigRsrq": "-10 dB",
		"ltesigSnr": "7 dB",
		"nr5gsigValid": true,
		"nr5gsigRsrp": "-95 dBm",
		"nr5gsigRsrq": "-21 dB",
		"nr5gsigSnr": "-5 dB"		
	},{}],
        "diagInfo": [  {		
		"lteAttached": true,
		"nr5gAttached": true,
		"endcEnabledConfig": true,
		"ltesigValid":true,		
		"ltesigRssi":"-66 dBm",	
		"ltesigRsrp": "-95 dBm",
		"ltesigRsrq": "-10 dB",
		"ltesigSnr": "9 dB",
		"nr5gsigValid": true,
		"nr5gsigRsrp": "-32768 dBm",
		"nr5gsigRsrq": "-32768 dB",
		"nr5gsigSnr": "-3276 dB"		
	},{}],
        	"diagInfo": [  {		
		"lteAttached": true,
		"nr5gAttached": false,
		"endcEnabledConfig": true,
		"ltesigValid":true,		
		"ltesigRssi":"-66 dBm",	
		"ltesigRsrp": "-97 dBm",
		"ltesigRsrq": "-12 dB",
		"ltesigSnr": "7 dB",
		"nr5gsigValid": true,
		"nr5gsigRsrp": "-32768 dBm",
		"nr5gsigRsrq": "-32768 dB",
		"nr5gsigSnr": "-3276 dB"		
	},{}],

        I confirm I have the following HW version :

        "model":"MR5200",
		"HWversion":"1.2",

         I'm using Free Mobile network in France in a static setup and the connection was rock solid until previous FW update.

         

        Thanks