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[sdzshn3@gmail.com]

Hey friends.
I have a DIR600M.
I request you to please have a time and patience to read this.
I have Motorola G5 plus device connected to Dir600m router.
What I'm experiencing is my phone frequently disconnects from router and connects again itself within 1 or 2 secs. When this happened I don't see any disconnection in other phones which are connected to same router.

I have discussed about this issue with Motorola software developer and he monitored packets and bug report of my phone.
He gave me a conclusion as my router couldn't able to balance the load and sometimes router couldn't able to send response/packets to my G5 plus. He sent me a clear observation that TX (transmission) is 0.0, 0.0, 0.0 but the RX(receive) is 0.2, 0.X, X.X (X means a number other than 0 zero) for the router (192.168.0.1).
This means router is not responding at all sometimes.
So, when this happened in router, My G5 plus couldn't able to get internet access for few seconds. So my phone disconnect and connect automatically to get rid of this issue.

The software developer also said that some other phones which is Galaxy S4 also not having net acces for few seconds but as the S4 is old phone and old OS, it's not programmed to disconnect and connect again when router not responds.

Here are some other observations.
In my environment,
I have 2 or 3 APs with channel 1.
I have a AP of channel 5 too which can interfere with 1.
So I also tested out 6 and 11 but, even these also has such problem but very often.
I even tried other channels like 4+8, 1+5 etc.
But mostly every channel has such issue.


So the question is what causing it?
What's the solution?

Here's the image of Rx and TX. https://drive.google.com/file/d/1NLK5psjUZzlaOdsBpCCSgl3H8YINWK3m/view?usp=drivesdk

[FurryNutz]

Link>Welcome!

• What Hardware version is your router? Look at sticker under the router case.
• Link>What Firmware version is currently loaded? Found on the routers web page under status.
• What region are you located?

Internet Service Provider and Modem Configurations

• What ISP Service do you have? Cable or DSL?
• What ISP Modem Mfr. and model # do you have?

 
Wireless Configurations
Links>Wireless Installation Considerations and Managing Signal Congestion and Good Neighbour Policy

• Ensure the default (dlink) SSID name is changed. Ensure that different SSID names are used between each WiFi 2.4/5Ghz radios. Can be anything and not something that's already in use by any neighbouring WiFi routers. Under Setup/Wireless/Manual.
• What wireless modes are you using?
• 2.4Ghz Routers only: Try single mode G or N or mixed G and N?
• Channel Width set for Auto 20/40Mhz or try 20Mhz only.
• Try setting a manual Channel to a open or unused channel. 1, 6 or 11. 11 for single mode N if the channel is clear. 13 for EU regions.
• What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only. Some WiFi adapters don't support AES, so you might want to try TPIK only or Auto TPIK and AES.
• What wireless devices do you have connected?
• Ensure any devices with WiFi adapter drivers are updated.
• Any 2.4Ghz or 5Ghz cordless house phones or WiFi APs near by that maybe causing interferences?
• Any other WiFi routers in the area that maybe causing interferences? Link> Use a WiFi Scanner to find out. How many?
• If you have any of these options, Try turning OFF or ON Short GI, WLAN Partition, Extra Wireless Protection and HT 20/40 Co-existence if you have it. Also testing with HT20/40Mhz Co-existence enabled will impact results as well. I prefer to use this option OFF. Recommended settings are default. Under Advanced/Advanced Wireless.

Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
3-6' feet minimum safe distance between devices.
Placement on main level floor and central in the building and WELL ventilated is preferred. Not in basements or closets as building materials, or near by electronics devices could interfere or hinder good signal propagation.
http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials
http://www.foxnews.com/tech/2015/10/27/how-to-get-stronger-wi-fi-signal.html?icid=maing-grid7|main5|dl31|sec1_lnk3%26pLid%3D1839803170

[sdzshn3@gmail.com]

Hardware version: C1
Software version: 3.05 but (now it's 3.06 with Chinese language so I'll downgrade)
Region: Andhra Pradesh, India.

ISP brought a Fibre optical cable upto my home and converted that cable to a small single yellow wire which is also optical fibre.
They used a media converter to convert optical fibre wire to RJ45.
The converter haa brand as Optilink. But I can't see any model number.

[FurryNutz]

Is the ISP Fiber connection device 1000Mb or 100Mb?

[sdzshn3@gmail.com]

There's no clue to find out.
My package is 10mega bits/s download and 30 for upload.
I assume the fibre has 100.

[FurryNutz]

I would find out from your ISP to see what connection speeds your modem and router connect at. Most modems or ONTs have 1000Mb connection rate support at the port. If this is supported at the modem/ONT, then you may have a bottleneck with speed at the 600M as I believe it only supports 100mb

Also run thru some of the suggestions in my first post to see if anything helps with this