Question

Connecting to WiFi Router from Laptop Crashes Internet Port

May 27, 2018 3:22AM PDT

So I've been stuck at this problem for a really long time.

I stay in the hostel of my university where they have 1 internet port provided and you're allowed to setup your own router. Their guide states specifically to set the router to NAT or route mode to prevent the port from shutting down for 15 mins.

I've currently setup my router (DIR 605L) to DHCP route mode. I am able to connect to the router from my android devices through WiFi with no issues. I can also connect my laptop with a cable without problems.

However, whenever I try to initiate a WiFi connection from my laptop, either from turning off and on the WiFi or rebooting laptop, the port provided from them closes down (light on router becomes off. Can't directly connect to laptop either, says "Network Cable Unplugged").

Any of you have any ideas why this happens? How is a WiFi connection initiated from the laptop any different from android phones?

I checked the router log, doesn't show anything out of the ordinary.

Grateful for any help you guys can give.

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Comments
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Clarification Request
does this laptop connect OK to university...
May 27, 2018 9:33AM PDT

...hot spots, indicating it's internal wifi is working OK?

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Yes
May 27, 2018 9:38AM PDT

Yes laptop wifi works fine with other connections.

I have found that putting my wifi card's MAC address into the router as its MAC to use when communicating with the internet port has allowed me to connect my laptop wifi without it disconnecting. Have not tried with other laptops.

Any idea why this is the case? Previously the MAC was set to 00:.... by default and it's stated "optional" to change.

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damned if I know
May 27, 2018 9:45AM PDT

so many routers, so many programs, so many differences, I'd lay it down to the router programming. I prefer the WRT type setup on routers like Linksys used.

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Answer
The 605
May 27, 2018 9:14AM PDT

Does appear to have complaints on the web. Try updating the router firmware to their latest.

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Latest beta firmware is used.
May 27, 2018 9:38AM PDT

Tried original firmware, latest beta firmware too. Tried another router with older firmware, same issue.

I have found that putting my wifi card's MAC address into the router as its MAC to use when communicating with the internet port has allowed me to connect my laptop wifi without it disconnecting. Have not tried with other laptops.

Any idea why this is the case? Previously the MAC was set to 00:.... by default and it's stated "optional" to change.

Post was last edited on May 27, 2018 9:40 AM PDT

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That changes my view.
May 27, 2018 10:59AM PDT

Sounds like the hostel system doesn't like the router's address of all zeros. I can see all zeros being an issue as there could be another user with that among other problems.

So my view is that an all zero address is just a bad idea.

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Not proper solution
May 27, 2018 6:19PM PDT

Putting the Mac address as my laptop's WiFi Mac only allows my laptop's WiFi to connect without issues. Any other laptop causes a disconnection. At this point, I have a feeling it's just bad router software.

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Then select a non-zero MAC address.
May 27, 2018 6:35PM PDT

As it stands I see an issue. We know that router had many complaints on the web so I can't fix that but a zero MAC address is fixed when you find one.

-> One other thing. I always take such posts as if the stock settings were in the router, latest firmware and following the host's (hostel) instruction.

In parting there were many routers that did the strangest things with the Microsoft WiFi "broadcast flag." It led to a lot of folk thinking folk in network were quacks.

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did you have to register your MAC
May 28, 2018 1:52AM PDT

for the laptop wifi with the university for access?

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