Via the steps described on the wiki-page, I installed the 22.03.5 (also the 21.02.7 release) version of openwrt on a d-link DIR-505.
When the DIR-505 boots-up, it response for a few seconds (2 or so) to ping (possibly telnet as well) and then becomes silent.
Is this a known problem? How can I resolve this?
If you've got a fresh/default install of OpenWrt, yes, there is a DHCP server on the lan interface. Wifi will be disabled by default, too... so you must connect with ethernet.
During startup (flashing green) the interface of my laptop looks like this:
11: enx00e04c534458: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:e0:4c:53:44:58 brd ff:ff:ff:ff:ff:ff
inet6 fe80::e726:56b4:96:21fd/64 scope link noprefixroute
valid_lft forever preferred_lft forever
When the flashing stops, my laptop interface looks like this:
11: enx00e04c534458: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
link/ether 00:e0:4c:53:44:58 brd ff:ff:ff:ff:ff:ff
Note that it says "NO-CARRIER" - link is down (my laptop has no leds for its network interface). So I think openwrt brings the interface down.
Just to be sure, I forced a dhclient-refresh on that interface but that timesout after a while.
Ok... it seems like the firmware is not booting. What you are getting is the bootloader at the beginning, and then it just stalls out when it tries to boot.
What firmware file did you use (what was the exact filename)? What was on the device when you started (was it the vendor/stock firmware or something else)? How did you perform the upgrade to OpenWrt?
The first installation was via the web-interface of the dir-505 itself. After that I used sysupgrade to go from e.g. 19 to 22. And when the system became unresponsive, I went back to 19 using the rescue-bootloader from d-link itself.