Are you using Kodi? If so, which add-on? You say it does nothing, what does that mean? Is there an error message? Does it try to load, but fails to complete the load? Exactly what happens?
When you were doing the reset, did you make sure everything was good with your account: active, MAC linked, URL is the same as configured in client?
I had an issue when I tried to use that combination the other day, although it had been working well previously. I haven't researched whether the m3u is being served properly. If you can configure PVR Stalker client for the moment, I'd go that route.
You have the credentials established. Use those, but make sure you disable IPTV Stalker Plus and IPTV Stalker Simple client before you enable PVR Stalker client. Directions for configuring PVR Stalker client are available in Kodi > PVR Clients (and below).
Are you configuring PVR Stalker client or IPTV Stalker Plus? That error occurs more often with IPTV Stalker Plus, although they're both capable of producing it.
If you are getting that error with PVR Stalker client...
Disable PVR Stalker client. Make sure you have both IPTV Stalker Plus and IPTV Simple client disabled. After they are all disabled, and you're certain the configuration is correct in PVR Stalker client, do an IPTV Reset at the donation checker and then re-enable PVR Stalker client.
I put my Mac my donation in user and password blank i the address in server I put device id 1 and 2 with 6 digits I uninstalled stalker an disable the PVR I put the 13 number serial and 6 of signature and after reset my route and I wait 15 minutes and nothing happens i have to change my service is the only way I think