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I'm connected wirelessly to a DIR-615 wireless AP+switch+router. I get an address via DHCP and am able to connect, although sometimes getting the address takes a long time for some reason; and once in a while the connection sort of dies and no longer resonds, and I need to discoonect.

But - that's not my main problem. My problem is with the IP that's assigned to me: I've registered a static DHCP address assignment for my PC's MAC address. Now, sometimes I do get that IP assignment to me, but sometimes I get a different one! Also, if I disconnect and reconnect, sometimes I get a lease with the undesirable address again, sometimes I'm switched to the new address.

I experience similar behavior with a second computer of mine (Laptop vs. Deskto), so it's probably the DIR-615, not my individual machines, that is the problem.

Notes:

  • If you running Windows 10, there is option to randomize MAC address to keep "kinda" privacy. Router associating static DHCP base on MAC address, so probably it is a case. Also make sure your router isn't hacked: cvedetails.com/vulnerability-list/vendor_id-899/… – Alex Aug 4 '18 at 16:10
  • 1. Privacy is not an issue here, I want the fixed address. 2. What makes you think it might be hacked? – einpoklum Aug 4 '18 at 16:50
  • Sometimes, you gotta buy a better router. Throw that one away. – JohnnyVegas Aug 4 '18 at 17:47
  • 1. It's not about privacy, but technical issue. Windows randomizing MAC address on WiFi that influence static DHCP mechanism. 2. Because if you would google "DIR-615 vulnerability" you would see countless firmware vulnerabilities regarding this router. Some hacks don't brake router's functionality, but some do. I see such hacked devices very often – Alex Aug 4 '18 at 18:05
  • Entirely opinion-based... but... the DIR-615 was a horrible bit of kit, even 10 years ago when it was new. Buy something better. – Tetsujin Aug 4 '18 at 18:13

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