Sudden disconnects when playing on GoldSrc servers

[SNMetamorph]

buffer.dat are attached.

Warning: CL_DeltaEntityGS: entity remove on non-delta update (249)
Error: CL_DeltaEntity: invalid newnum: 1882
Last 32 messages parsed.
124108 0017 Battery
124108 0020 Battery
124108 0023 Battery
124108 0026 svc_time
124108 0031 svc_clientdata
124108 0057 svc_deltapacketentities
124114 0008 Battery
124114 0011 Battery
124114 0014 Battery
124114 0017 Battery
124114 0020 Battery
124114 0023 Battery
124114 0026 svc_time
124114 0031 svc_clientdata
124114 0061 svc_deltapacketentities
124114 0204 svc_sound
124114 0216 svc_sound
124114 0228 svc_sound
124114 0240 svc_sound
124114 0252 svc_sound
124114 0264 svc_sound
124121 0008 Battery
124121 0011 Geiger
124121 0013 Battery
124121 0016 ReqState
124121 0017 Battery
124121 0020 Battery
124121 0023 Battery
124121 0026 Battery
124121 0029 svc_time
124121 0034 svc_clientdata
BAD: 124121 0060 svc_deltapacketentities
Wrote erroneous message to buffer.dat
Host_Error: CL_DeltaEntityGS: bad delta entity number: 1882

buffer.zip