Solved BE-88U warm boot WAN connection failure

[RiskyBusiness]

Recently replaced an old and faithful AC-3100 with a new BE-88U (latest release of RMerlin installed). Internet here is via Spectrum (1G/35M) cable. The issue I'm seeing is when warm rebooting the router, it often fails to connect thru the bridged cable modem to the internet. The only way it finally connects is if I disconnect the power and force a cold start. I have not had the time yet to comb thru the logs and look for indications of why this might be happening, but was wondering if anyone else with this router was having a similar experience. The router is set up with a USB thumb drive with AMTM, swap file, entware and unbound, but other than that, a fairly clean setup.

regards,

RB

 

[Tech9]

It's most likely RT-BE88U model and WAN connection issue, not WLAN. It was reported few times already with different ASUS routers.

 

[RiskyBusiness]

It's most likely RT-BE88U model and WAN connection issue, not WLAN. It was reported few times already with different ASUS routers.

Thanks for the response @Tech9 . Just found and read thru a reddit referenced thread on the issue that explained what I'm seeing here to a "T". Sounds like it's an ASUS issue that has been aound for some time now. Guess I should have done a little more research prior to my purchase. Interesting that the old AC3100 never experienced any of these problems.

 

[Tech9]

Sounds like it's an ASUS issue that has been aound for some time now.

I have never seen it personally. Perhaps some incompatibility between networking equipment related with solutions ranging from simple cable replacement to modem or router replacement with different make/model. You have to find what works in your specific case.

 

[RiskyBusiness]

Well, after screening thru the logs, reading thru threads, and a little tinkering, I think I've found the problem. It seems theses newer routers have a "WAN Autodetection" process that may not be perfected yet. Since I have the modem connected to the WAN/LAN1 (2.5 gb) port vs the WAN/LAN (10 gb) port, it seems the autodetection was hanging up trying to connect to the first WAN (10 gb) port. I turned off autodetection and selected the WAN/LAN1 (2.5 gb) port that goes to the modem and haven't had an issue since. I also turned off the "4G / 5G Auto Mobile Tethering" since I don't currently use that feature either. I've done about a half dozen software (warm) reboots since changing the above settings, and the WAN has connected right up every time. I may try connecting the modem to the first WAN/LAN (10 gb) port when I have time and see what the autodetection does there, but for now everything is working as it should be

 

[jksmurf]

I turned off autodetection and selected the WAN/LAN1 (2.5 gb) port that goes to the modem and haven't had an issue since.

Would you be able to post a screenshot please for folks looking to see what this setting looks like and where it is, thanks a lot.

 

[Tech9]

It seems theses newer routers have a "WAN Autodetection" process that may not be perfected yet.

You may want to report the issue to ASUS in Feedback Form.